Finding the Fourth Proportional to 1,123,918.72, 1,685,876.16 and 524,679.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123,918.72 : 1,685,876.16 = 524,679.04 : x
2. Step 2: Convert to fraction form
   1,123,918.72/1,685,876.16 = 524,679.04/x
3. Step 3: Cross multiply
   1,123,918.72x = 1,685,876.16 × 524,679.04
4. Step 4: Simplify right side
   1,123,918.72x = 884,543,885,187.69
5. Step 5: Solve for x
   x = 884,543,885,187.69/1,123,918.72
6. Step 6: Final answer
   x = 787,017.66