Finding the Fourth Proportional to 1,140,585.18, 1,574,179.83 and 657,221.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,140,585.18 : 1,574,179.83 = 657,221.82 : x
2. Step 2: Convert to fraction form
   1,140,585.18/1,574,179.83 = 657,221.82/x
3. Step 3: Cross multiply
   1,140,585.18x = 1,574,179.83 × 657,221.82
4. Step 4: Simplify right side
   1,140,585.18x = 1,034,585,332,879.89
5. Step 5: Solve for x
   x = 1,034,585,332,879.89/1,140,585.18
6. Step 6: Final answer
   x = 907,065.38