China and the Inter-American Development Bank said on Monday they are starting a $1 billion fund to invest in Latin America, though the Asian giant’s latest push to expand its influence in the region prompted words of caution from Brazil. To feed its fast-growing economy’s voracious appetite for raw materials, China has invested tens of billions of dollars in the region, from Mexico to Argentina, over the last decade to acquire strategic assets or companies in sectors such as oil, minerals and food…