着落 (zhuó luò) is a noun meaning 'where something lands or is found'—it covers whereabouts, a reliable source of funding/supplies, or a settlement to a problem. For whereabouts, it is more formal than 下落 (xià luò) and less fixed than 所在 (suǒ zài). For solutions, it implies a final placement (e.g. responsibility) unlike 答案 'answer' (a verbal response) or 和解 'reconciliation' (between people).