Finding the Fourth Proportional to 2,639,630.31, 3,642,689.82 and 1,432,406.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,639,630.31 : 3,642,689.82 = 1,432,406.31 : x
2. Step 2: Convert to fraction form
   2,639,630.31/3,642,689.82 = 1,432,406.31/x
3. Step 3: Cross multiply
   2,639,630.31x = 3,642,689.82 × 1,432,406.31
4. Step 4: Simplify right side
   2,639,630.31x = 5,217,811,883,540.76
5. Step 5: Solve for x
   x = 5,217,811,883,540.76/2,639,630.31
6. Step 6: Final answer
   x = 1,976,720.70