Information on four investment proposals is given below: Investment Proposal A B C Investment required Present value of cash inflows Net present value $ (290,000) 421,200 $ 131,200 $ (140,000) 196,500 $ 56,500 $ (60,000) 94,300 $ 34,300 Life of the project 5 years 7 years 6 years Required: D $ (1,300,000) 1,734,600 $ 434,600 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 Rank Index Preference A B C D