Information on four investment proposals is given below: Investment Proposal A B Investment required Present value of cash inflows Net present value $ (360,000) 506,900 $ 146,900 $ (50,000) 67,600 $ 17,600 Life of the project 5 years 7 years $ (140,000) 214,300 $ 74,300 6 years Required: D $ (840,000) 1,121,400 $ 281,400 6 years 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 CD