Finding the Fourth Proportional to 3,414.72, 4,711.56 and 2,172

Step by Step Solution

1. Step 1: Write the proportion equation
   3,414.72 : 4,711.56 = 2,172 : x
2. Step 2: Convert to fraction form
   3,414.72/4,711.56 = 2,172/x
3. Step 3: Cross multiply
   3,414.72x = 4,711.56 × 2,172
4. Step 4: Simplify right side
   3,414.72x = 10,233,508.32
5. Step 5: Solve for x
   x = 10,233,508.32/3,414.72
6. Step 6: Final answer
   x = 2,996.88