Willis currently has $$140,000$ invested in a four$-$stock portfolio with a beta coefficient equal to $1\mathrm{.}5.$ Willis plans to sell one of the stocks in his portfolio for $$56,000,$ which will increase the portfolio's beta to $1\mathrm{.}8.$ What is the beta coefficient of the stock Willis plans to sell? Do not round intermediate calculations, Round your answer to two decimal places.