Information on four investment proposals is given below: A B Investment required Present value of cash inflows. Net present value. $ (300,000) 424,800 $ 124,800 $ (140,000) 191,700 $51,700 Investment Proposal C $ (100,000) 151,100 $ 51,100 Life of the project 5 years 7 years 6 years Required: D $ (1,500,000) 2,001,700 $ 501,700 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 Rank Proposal Index Preference A B C D 6 years