Over the past several weeks you have assembled a small stock portfolio via the purchase of small amounts of different company stocks. You know that the point of a portfolio is to reduce your overall exposure to systematic risk, but aren't sure exactly what the risk of your new portfolio is$.$ You have purchased the following : $$10,000$ of Tesla Stock, $$3,000$ of McDonald's Stock, and $$2,000$ of Boeing Stock. You have estimated the betas of these stocks to be the following : $$ of $4\mathrm{.}38$ for Tesla, a $$ of $0\mathrm{.}78$ for McDonald's, and a $$ of $1\mathrm{.}2$ for Boeing. What is the beta of your portfolio? $($Round to $2$ decimals$)$

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