(Adds detail) BRASILIA, Feb 14 (Reuters) – Economic activity in Brazil fell in December, a central bank indicator showed on Friday, in a steeper-than-forecast decline that ties in with other data suggesting Latin America’s largest economy lost steam at the end of last year. The central bank’s IBC-Br economic activity index, considered a leading indicator of gross domestic product (GDP), fell 0.27% from November, compared with the median estimate in a Reuters poll of […]