Finding the Fourth Proportional to 1,016.18, 1,402.24 and 574.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.18 : 1,402.24 = 574.12 : x
2. Step 2: Convert to fraction form
   1,016.18/1,402.24 = 574.12/x
3. Step 3: Cross multiply
   1,016.18x = 1,402.24 × 574.12
4. Step 4: Simplify right side
   1,016.18x = 805,054.03
5. Step 5: Solve for x
   x = 805,054.03/1,016.18
6. Step 6: Final answer
   x = 792.24