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 calculations and the final answer to 3 decimal places, e.g. 2.361.) Beta