Finding the Fourth Proportional to 1,016.10, 1,402.31 and 574.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.10 : 1,402.31 = 574.08 : x
2. Step 2: Convert to fraction form
   1,016.10/1,402.31 = 574.08/x
3. Step 3: Cross multiply
   1,016.10x = 1,402.31 × 574.08
4. Step 4: Simplify right side
   1,016.10x = 805,035.25
5. Step 5: Solve for x
   x = 805,035.25/1,016.10
6. Step 6: Final answer
   x = 792.28