Finding the Fourth Proportional to 1,172,281.55, 1,617,835.46 and 656,087.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,172,281.55 : 1,617,835.46 = 656,087.18 : x
2. Step 2: Convert to fraction form
   1,172,281.55/1,617,835.46 = 656,087.18/x
3. Step 3: Cross multiply
   1,172,281.55x = 1,617,835.46 × 656,087.18
4. Step 4: Simplify right side
   1,172,281.55x = 1,061,441,093,285.79
5. Step 5: Solve for x
   x = 1,061,441,093,285.79/1,172,281.55
6. Step 6: Final answer
   x = 905,448.95