Information on four investment proposals is given below: Investment Proposal A D $ (390,000) $ ( 30,000) $ (40,000) $ (600,000) 41,000 Investment required Present value of cash inflows 800,000 551,000 64,100 $ 161,000 $ 11,000 $ 24,100 $ 200,000 Net present value Life of the project ears 7 years 6 years 5 years Required: 1. Compute the project profitability index for each investment proposal. (Round your answers to 2 decimal places.) 2. Rank the proposals in terms of preference. Project Profitability Index Investment Rank Preference Proposal A