Finding the Fourth Proportional to 1,443,141.76, 1,989,905.82 and 1,079,399.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443,141.76 : 1,989,905.82 = 1,079,399.92 : x
2. Step 2: Convert to fraction form
   1,443,141.76/1,989,905.82 = 1,079,399.92/x
3. Step 3: Cross multiply
   1,443,141.76x = 1,989,905.82 × 1,079,399.92
4. Step 4: Simplify right side
   1,443,141.76x = 2,147,904,182,915.53
5. Step 5: Solve for x
   x = 2,147,904,182,915.53/1,443,141.76
6. Step 6: Final answer
   x = 1,488,352.87