Finding the Fourth Proportional to 1,658.10, 2,287.72 and 1,028.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,658.10 : 2,287.72 = 1,028.32 : x
2. Step 2: Convert to fraction form
   1,658.10/2,287.72 = 1,028.32/x
3. Step 3: Cross multiply
   1,658.10x = 2,287.72 × 1,028.32
4. Step 4: Simplify right side
   1,658.10x = 2,352,505.66
5. Step 5: Solve for x
   x = 2,352,505.66/1,658.10
6. Step 6: Final answer
   x = 1,418.80