Finding the Fourth Proportional to 2,691.43, 3,715.83 and 2,134.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,691.43 : 3,715.83 = 2,134.15 : x
2. Step 2: Convert to fraction form
   2,691.43/3,715.83 = 2,134.15/x
3. Step 3: Cross multiply
   2,691.43x = 3,715.83 × 2,134.15
4. Step 4: Simplify right side
   2,691.43x = 7,930,138.59
5. Step 5: Solve for x
   x = 7,930,138.59/2,691.43
6. Step 6: Final answer
   x = 2,946.44