Finding the Fourth Proportional to 2,315.71, 3,474.17 and 929.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,315.71 : 3,474.17 = 929.10 : x
2. Step 2: Convert to fraction form
   2,315.71/3,474.17 = 929.10/x
3. Step 3: Cross multiply
   2,315.71x = 3,474.17 × 929.10
4. Step 4: Simplify right side
   2,315.71x = 3,227,829.33
5. Step 5: Solve for x
   x = 3,227,829.33/2,315.71
6. Step 6: Final answer
   x = 1,393.88