Finding the Fourth Proportional to 1,200,367.58, 1,656,483.96 and 656,501.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200,367.58 : 1,656,483.96 = 656,501.68 : x
2. Step 2: Convert to fraction form
   1,200,367.58/1,656,483.96 = 656,501.68/x
3. Step 3: Cross multiply
   1,200,367.58x = 1,656,483.96 × 656,501.68
4. Step 4: Simplify right side
   1,200,367.58x = 1,087,484,502,633.05
5. Step 5: Solve for x
   x = 1,087,484,502,633.05/1,200,367.58
6. Step 6: Final answer
   x = 905,959.58