Information on four investment proposals is given below: Investment required Present value of cash inflows Net present value Life of the project Investment Proposal A B C D $(390,000) $(30,000) $(40,000) $(600,000) 551,000 41,000 64,100 800,000 $ 161,000 $ 11,000 $ 24,100 $ 200,000 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 B D