Thanks everyone. I looked at my cruise docs, and this contradicts what Royal Caribbean states on their website, so I'm going by what my docs say. My docs state that there will be 4 casual nights, and 1 formal night, and the RCI website says that there are 3 casual nights, 1 formal night, and 1 "smart casual" night. I guess it depends on the crew and the destinations.
2007 - Majesty of the Seas (Bahamas)
2009 - Enchantment of the Seas (Western Caribbean)
2010 - Freedom of the Seas (Western Caribbean)
2013 - Golden Princess (Alaska, roundtrip from Seattle)