Finding the Fourth Proportional to 1,016.38, 1,402.49 and 574.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.38 : 1,402.49 = 574.19 : x
2. Step 2: Convert to fraction form
   1,016.38/1,402.49 = 574.19/x
3. Step 3: Cross multiply
   1,016.38x = 1,402.49 × 574.19
4. Step 4: Simplify right side
   1,016.38x = 805,285.85
5. Step 5: Solve for x
   x = 805,285.85/1,016.38
6. Step 6: Final answer
   x = 792.31