Finding the Fourth Proportional to 931,123.98, 1,284,909.71 and 543,975.30

Step by Step Solution

1. Step 1: Write the proportion equation
   931,123.98 : 1,284,909.71 = 543,975.30 : x
2. Step 2: Convert to fraction form
   931,123.98/1,284,909.71 = 543,975.30/x
3. Step 3: Cross multiply
   931,123.98x = 1,284,909.71 × 543,975.30
4. Step 4: Simplify right side
   931,123.98x = 698,959,142,250.29
5. Step 5: Solve for x
   x = 698,959,142,250.29/931,123.98
6. Step 6: Final answer
   x = 750,661.73