Distance = 428 miles
Fuel efficiency = 19 miles per gallon
Fuel price = $3.75 per gallon
Number of gallons required = Distance / Fuel efficiency
= 428 miles / 19 miles per gallon
= 22.53 gallons (rounded to two decimal places)
Cost of fuel = Number of gallons required * Fuel price
= 22.53 gallons * $3.75 per gallon
= $84.86 (rounded to two decimal places)
Therefore, it would cost approximately $84.86 to travel 428 miles with the given fuel efficiency and fuel price.