OSLO (Reuters) -DNB, Norway’s largest bank, reported a slightly bigger-than-expected fourth-quarter profit on Wednesday and proposed a larger dividend increase than analysts had forecast. Net profit fell to 9.40 billion Norwegian crowns ($897.8 million) in the October-December period from 10.1 billion a year earlier. Analysts, on average, expected 9.23 billion crowns, according to a poll compiled by the bank. While rising interest rates have boosted profits at Nordic banks over the past two years, loan losses have also increased and central banks in the region are expected to start easing mone…