Finding the Fourth Proportional to 3,432.27, 4,742.72 and 2,739.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,432.27 : 4,742.72 = 2,739.15 : x
2. Step 2: Convert to fraction form
   3,432.27/4,742.72 = 2,739.15/x
3. Step 3: Cross multiply
   3,432.27x = 4,742.72 × 2,739.15
4. Step 4: Simplify right side
   3,432.27x = 12,991,007.79
5. Step 5: Solve for x
   x = 12,991,007.79/3,432.27
6. Step 6: Final answer
   x = 3,784.96