Finding the Fourth Proportional to 1,042.52, 1,554.22 and 960.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,042.52 : 1,554.22 = 960.31 : x
2. Step 2: Convert to fraction form
   1,042.52/1,554.22 = 960.31/x
3. Step 3: Cross multiply
   1,042.52x = 1,554.22 × 960.31
4. Step 4: Simplify right side
   1,042.52x = 1,492,520.44
5. Step 5: Solve for x
   x = 1,492,520.44/1,042.52
6. Step 6: Final answer
   x = 1,431.65