Step 1: Identify the number of decimal places

The decimal 4.088542 has 6 decimal places.

Step 2: Multiply by the appropriate power of 10

Multiply by 10⁶ = 1000000 to eliminate the decimal point.

4.088542 × 1000000 = 4088542

Step 3: Write as a fraction

Step 4: Simplify the fraction

Find the greatest common divisor (GCD) of 4088542 and 1000000.

GCD(4088542, 1000000) = 2

Divide both the numerator and denominator by the GCD: