Finding the Fourth Proportional to 1,142,218.98, 1,576,227.78 and 625,966.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,142,218.98 : 1,576,227.78 = 625,966.56 : x
2. Step 2: Convert to fraction form
   1,142,218.98/1,576,227.78 = 625,966.56/x
3. Step 3: Cross multiply
   1,142,218.98x = 1,576,227.78 × 625,966.56
4. Step 4: Simplify right side
   1,142,218.98x = 986,665,881,223.04
5. Step 5: Solve for x
   x = 986,665,881,223.04/1,142,218.98
6. Step 6: Final answer
   x = 863,814.99