The Cheesecake Factory Inc. said today that its preliminary revenues for the fourth quarter of the year rose 18 percent to $360.4 million versus the year-ago period. Calabasas Hills-based Cheesecake said comparable restaurant sales rose 8 percent in the fourth quarter ended Jan. 2. The company’s fiscal 2006 year contained 52 weeks while its fiscal 2005 year contained 53 weeks. On a reported basis, the company said revenues increased about 10 percent in the fourth quarter of 2006.