just need help with the 3 unanswered boxes

Oxford Company has limited funds avaliable for investment and must ration the funds among four competing projects. Selected information on the four projects follows: The net present values should be computed using a 10% discount rate. The company wants your assistance in determining which project to accept first, second, and so forth. Required: 1. Compute the profitability index for each project. 2. In order of preference, rank the four projects in terms of net present value, profitability index, and internal rate of return. Complete this question by entering your answers in the tabs below. In order of preference, rank the four projects in terms of net present value, profitability index, and internal rate of return