Finding the Fourth Proportional to 1,398,243.72, 1,929,520.76 and 825,468.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,398,243.72 : 1,929,520.76 = 825,468.42 : x
2. Step 2: Convert to fraction form
   1,398,243.72/1,929,520.76 = 825,468.42/x
3. Step 3: Cross multiply
   1,398,243.72x = 1,929,520.76 × 825,468.42
4. Step 4: Simplify right side
   1,398,243.72x = 1,592,758,453,114.40
5. Step 5: Solve for x
   x = 1,592,758,453,114.40/1,398,243.72
6. Step 6: Final answer
   x = 1,139,113.61