Finding the Fourth Proportional to 3,131.46, 4,318.52 and 2,134.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,131.46 : 4,318.52 = 2,134.76 : x
2. Step 2: Convert to fraction form
   3,131.46/4,318.52 = 2,134.76/x
3. Step 3: Cross multiply
   3,131.46x = 4,318.52 × 2,134.76
4. Step 4: Simplify right side
   3,131.46x = 9,218,971.49
5. Step 5: Solve for x
   x = 9,218,971.49/3,131.46
6. Step 6: Final answer
   x = 2,943.99