Finding the Fourth Proportional to 1,162,399.76, 1,604,827.32 and 921,654.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,162,399.76 : 1,604,827.32 = 921,654.80 : x
2. Step 2: Convert to fraction form
   1,162,399.76/1,604,827.32 = 921,654.80/x
3. Step 3: Cross multiply
   1,162,399.76x = 1,604,827.32 × 921,654.80
4. Step 4: Simplify right side
   1,162,399.76x = 1,479,096,802,649.14
5. Step 5: Solve for x
   x = 1,479,096,802,649.14/1,162,399.76
6. Step 6: Final answer
   x = 1,272,451.06