user: Question: What rank has a population of 4839400?
Columns: ['Rank', 'City', 'Population', 'Definition', 'Country']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Shanghai', '13831900', 'Core districts + inner suburbs', 'China']
SQL:

assistant: SELECT "Rank" FROM "Table" WHERE "Population" = '4839400';