Finding the Fourth Proportional to 2,345.31, 3,517.89 and 958.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,345.31 : 3,517.89 = 958.29 : x
2. Step 2: Convert to fraction form
   2,345.31/3,517.89 = 958.29/x
3. Step 3: Cross multiply
   2,345.31x = 3,517.89 × 958.29
4. Step 4: Simplify right side
   2,345.31x = 3,371,158.81
5. Step 5: Solve for x
   x = 3,371,158.81/2,345.31
6. Step 6: Final answer
   x = 1,437.40