Harrah's, Caesars to Sell Four Casinos  LOS ANGELES (Reuters) - Harrah's Entertainment Inc. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=HET.N target=/stocks/quickinfo/fullquote"&gt;HET.N&lt;/A&gt;  and Caesars Entertainment Inc. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=CZR.N target=/stocks/quickinfo/fullquote"&gt;CZR.N&lt;/A&gt; on Monday said they have  agreed to sell four casinos for \$1.24 billion to privately held  Colony Capital in a deal expected to ease anti-trust concerns  for Harrah's planned takeover of Caesars.