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 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 pre ice. Investment Profitability Proposal Index Rank Preference A B D