Finding the Fourth Proportional to 2,639,647.72, 3,642,713.86 and 1,432,423.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,639,647.72 : 3,642,713.86 = 1,432,423.72 : x
2. Step 2: Convert to fraction form
   2,639,647.72/3,642,713.86 = 1,432,423.72/x
3. Step 3: Cross multiply
   2,639,647.72x = 3,642,713.86 × 1,432,423.72
4. Step 4: Simplify right side
   2,639,647.72x = 5,217,909,738,236.76
5. Step 5: Solve for x
   x = 5,217,909,738,236.76/2,639,647.72
6. Step 6: Final answer
   x = 1,976,744.74