Information on four investment proposals is given below Investment required Present value of cash inflows Net present value Life of the project Investment Proposal c D 5(290,000) (140,000) 5(68,000) S(1,380,000) 421,200 196,500 94,300 1,734,600 $ 131,200 56,588 $ 34,386 5 434,600 5 years 7 years 6 years 6 years Required: 1. Compute the profitability index for each investment proposal. (Round your answers to 2 decimal places.) 2. Rank the proposals in terms of preference. Investment Profitability Proposal Index Rank Preference A First B D