user: Question: Which specific dates encompass the time period when "The Show Girl Must Go On" showed a gross sales figure total of $2,877,906?
Columns: ['Dates (MDY)', 'Gross Sales', 'Tickets Sold / Available', 'Shows / Sellout', 'Sellout (%)']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['February 20–24, 2008', '$2,502,251', '16,591 / 16,591', '4 / 4', '100%']
SQL:

assistant: SELECT "Dates (MDY)" FROM "Table" WHERE "Gross Sales" = '$2,877,906';