Is "looking to" considered proper English?

Solution 1:

The Free Dictionary site includes citations from the Cambridge Dictionary of American Idioms, The American Heritage® Dictionary of Idioms, and The American Heritage® Dictionary of Phrasal Verbs with meanings of to plan or expect something to happen. There's no special indication as to the informality or correctness of the expression. There would be nothing surprising or even particularly informal about the phrase in (American) business meetings: "We're looking to increase revenues by 200 per cent over the next three years". The frequency of usage may vary regionally, but I can't imagine a speaker of American English who would be surprised or "put off" by this usage. Similarly, "looking at" is not infrequently used to mean considering or contemplating an option or possibility: "Are they looking at eliminating staff?"

Solution 2:

It's certainly grammatical. "Are you [gerund] [infinitive]?" is a common enough pattern. So much that I find it hard to answer any objection because I can't see what the objection might be.

Look meaning "plan" or "expect" is a long-standing sense.

… and by midnight look to hear further from me. — "All's Well That Ends Well", Act III, Scene 6.

Come, go with us; we'll look to that anon: — "The Comedy of Errors", Act V, Scene 1.