Finding the Fourth Proportional to 931,055.59, 1,284,815.70 and 543,906.86

Step by Step Solution

1. Step 1: Write the proportion equation
   931,055.59 : 1,284,815.70 = 543,906.86 : x
2. Step 2: Convert to fraction form
   931,055.59/1,284,815.70 = 543,906.86/x
3. Step 3: Cross multiply
   931,055.59x = 1,284,815.70 × 543,906.86
4. Step 4: Simplify right side
   931,055.59x = 698,820,066,641.62
5. Step 5: Solve for x
   x = 698,820,066,641.62/931,055.59
6. Step 6: Final answer
   x = 750,567.50