Finding the Fourth Proportional to 1,061.30, 1,587.45 and 952.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.30 : 1,587.45 = 952.40 : x
2. Step 2: Convert to fraction form
   1,061.30/1,587.45 = 952.40/x
3. Step 3: Cross multiply
   1,061.30x = 1,587.45 × 952.40
4. Step 4: Simplify right side
   1,061.30x = 1,511,887.38
5. Step 5: Solve for x
   x = 1,511,887.38/1,061.30
6. Step 6: Final answer
   x = 1,424.56