Finding the Fourth Proportional to 1,105,974.72, 1,659,428.64 and 657,552.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105,974.72 : 1,659,428.64 = 657,552.24 : x
2. Step 2: Convert to fraction form
   1,105,974.72/1,659,428.64 = 657,552.24/x
3. Step 3: Cross multiply
   1,105,974.72x = 1,659,428.64 × 657,552.24
4. Step 4: Simplify right side
   1,105,974.72x = 1,091,161,019,352.15
5. Step 5: Solve for x
   x = 1,091,161,019,352.15/1,105,974.72
6. Step 6: Final answer
   x = 986,605.75