Current Attempt in Progress Suppose you have a portfolio that has $230 in stock A with a beta of 0.98,$920 in stock B with a beta of 1.28 , and $690 in the risk-free asset. You have another $460 to invest. You wish to achieve a beta for your whole portfolio to be the same as the market beta. What is the beta of the added security? (Round intermediate colculations and the final answer to 3 decimal ploces, es. 2.361.)