Finding the Fourth Proportional to 1,351.52, 1,864.40 and 958.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,351.52 : 1,864.40 = 958.72 : x
2. Step 2: Convert to fraction form
   1,351.52/1,864.40 = 958.72/x
3. Step 3: Cross multiply
   1,351.52x = 1,864.40 × 958.72
4. Step 4: Simplify right side
   1,351.52x = 1,787,437.57
5. Step 5: Solve for x
   x = 1,787,437.57/1,351.52
6. Step 6: Final answer
   x = 1,322.54