FYI,
A persuasive problem statement consists of three parts: 1) the ideal, 2) the reality, and 3) the consequences for the reader of the feasibility report. Well constructed problem statements will convince your audience that the problem is real and worth having you investigate. Your strategy is one of contrast: by situating the the ideal scenario next to the situation as it exists, you can not only persuade the reader that a problem exists, but then go on to emphasize the consequences of ignoring or addressing the problem.
Remember, your problem statement is the backbone of the proposal and the feasibility report. By giving careful consideration to how you construct it now (for the proposal), you can use it when doing your research and writing for the proposal as well as the progress and the feasibility report.