Finding the Fourth Proportional to 1,098,053.72, 1,515,098.72 and 689,919.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,098,053.72 : 1,515,098.72 = 689,919.12 : x
2. Step 2: Convert to fraction form
   1,098,053.72/1,515,098.72 = 689,919.12/x
3. Step 3: Cross multiply
   1,098,053.72x = 1,515,098.72 × 689,919.12
4. Step 4: Simplify right side
   1,098,053.72x = 1,045,295,577,340.32
5. Step 5: Solve for x
   x = 1,045,295,577,340.32/1,098,053.72
6. Step 6: Final answer
   x = 951,953.04