Final answer:
To convert 4,000 liters of fuel to gallons, divide by the conversion factor of 3.79 liters per gallon, which results in approximately 1,055.41 gallons.
Step-by-step explanation:
The question involves converting liters of fuel into gallons, which is a mathematical problem of unit conversion. To convert the jet's 4,000 liters of fuel to gallons, we use the conversion factor that 1 gallon is approximately 3.79 liters. Thus, we divide the amount of fuel in liters by the conversion factor to obtain the amount in gallons.
The calculation for converting liters to gallons is to take the total liters and divide by the conversion factor:
4,000 liters ÷ 3.79 liters/gallon = 1,055.41 gallons
Therefore, the jet used approximately 1,055.41 gallons of fuel.