Spielberg builds a portfolio by investing in two stocks only: Samsung (SMSN) and Nokia (NOK). According to the CAPM, the expected risk premium (i.e., the expected return minus the risk-free rate) of SMSN is 13.09% and the expected risk premium of NOK is 6.42%. The beta of SMSN is equal to 1.13. If Spielberg puts 78% of his money in SMSN stock and 22% in NOK stock, what is the approximate beta of his portfolio?