Finding the Fourth Proportional to 985,892.51, 1,360,544.89 and 556,171.31

Step by Step Solution

1. Step 1: Write the proportion equation
   985,892.51 : 1,360,544.89 = 556,171.31 : x
2. Step 2: Convert to fraction form
   985,892.51/1,360,544.89 = 556,171.31/x
3. Step 3: Cross multiply
   985,892.51x = 1,360,544.89 × 556,171.31
4. Step 4: Simplify right side
   985,892.51x = 756,696,034,405.61
5. Step 5: Solve for x
   x = 756,696,034,405.61/985,892.51
6. Step 6: Final answer
   x = 767,523.87