Finding the Fourth Proportional to 1,398,245.72, 1,929,523.52 and 825,470.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,398,245.72 : 1,929,523.52 = 825,470.42 : x
2. Step 2: Convert to fraction form
   1,398,245.72/1,929,523.52 = 825,470.42/x
3. Step 3: Cross multiply
   1,398,245.72x = 1,929,523.52 × 825,470.42
4. Step 4: Simplify right side
   1,398,245.72x = 1,592,764,590,454.28
5. Step 5: Solve for x
   x = 1,592,764,590,454.28/1,398,245.72
6. Step 6: Final answer
   x = 1,139,116.37