By TOBY STERLING Unilever NV, the maker of Ben & Jerry's ice cream and Dove soap, says its fourth quarter earnings fell by 27 percent, as its year-ago figures were boosted by a one-time gain on the sale of a unit.Net profit was euro831 million ($1.15 billion) down from euro1.14 billion a year earlier, when Unilever sold its Bertolli brand to Spain's Grupo SOS for euro630 million.