Finding the Fourth Proportional to 1,200,367.59, 1,656,484.05 and 656,501.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200,367.59 : 1,656,484.05 = 656,501.73 : x
2. Step 2: Convert to fraction form
   1,200,367.59/1,656,484.05 = 656,501.73/x
3. Step 3: Cross multiply
   1,200,367.59x = 1,656,484.05 × 656,501.73
4. Step 4: Simplify right side
   1,200,367.59x = 1,087,484,644,542.41
5. Step 5: Solve for x
   x = 1,087,484,644,542.41/1,200,367.59
6. Step 6: Final answer
   x = 905,959.69