Regarding significant figures when solving dimensional analysis problems: If not or dividing we use smallest amt sf's?

Regarding significant figures when solving dimensional analysis problems:

If not or dividing we use smallest amt sf's?

A cook measures 2.2 at. of a liquid having a density of 0.82 g/mL. What is the mass of the liquid in lbs?

I came up with 4 lbs because I used 1000mL in the st conversion to mL. 1000 has 1 sf. Am I on track?