Finding the Fourth Proportional to 2,315.48, 3,462.90 and 2,057.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,315.48 : 3,462.90 = 2,057.15 : x
2. Step 2: Convert to fraction form
   2,315.48/3,462.90 = 2,057.15/x
3. Step 3: Cross multiply
   2,315.48x = 3,462.90 × 2,057.15
4. Step 4: Simplify right side
   2,315.48x = 7,123,687.42
5. Step 5: Solve for x
   x = 7,123,687.42/2,315.48
6. Step 6: Final answer
   x = 3,076.56