Information on four investment proposals is given below: Investment Proposal 120,000) s(180.000) s 172,000 250,000 52,000 $ 70,000 $18,600 $ 521,000 5 years (30,000) $(1,560,000) Investment required Present value of cash 48,600 2,081,000 inflows Net present value Life of the project 7 years 6 years 6 years Required: 1. Compute the project profitability index for each investment proposal. (Round your answers to 2 decimal places.) Project Investment Profitability Proposal Index 2. Rank the proposals in terms of preference. O D CBA BCAD OABCD OCABD