Finding the Fourth Proportional to 948,072.56, 1,308,019.61 and 539,885.00

Step by Step Solution

1. Step 1: Write the proportion equation
   948,072.56 : 1,308,019.61 = 539,885.00 : x
2. Step 2: Convert to fraction form
   948,072.56/1,308,019.61 = 539,885.00/x
3. Step 3: Cross multiply
   948,072.56x = 1,308,019.61 × 539,885.00
4. Step 4: Simplify right side
   948,072.56x = 706,180,171,764.61
5. Step 5: Solve for x
   x = 706,180,171,764.61/948,072.56
6. Step 6: Final answer
   x = 744,858.79