Finding the Fourth Proportional to 1,145,098.70, 1,580,430.59 and 661,943.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,145,098.70 : 1,580,430.59 = 661,943.93 : x
2. Step 2: Convert to fraction form
   1,145,098.70/1,580,430.59 = 661,943.93/x
3. Step 3: Cross multiply
   1,145,098.70x = 1,580,430.59 × 661,943.93
4. Step 4: Simplify right side
   1,145,098.70x = 1,046,156,435,997.16
5. Step 5: Solve for x
   x = 1,046,156,435,997.16/1,145,098.70
6. Step 6: Final answer
   x = 913,594.99