Finding the Fourth Proportional to 1,016.22, 1,402.32 and 574.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.22 : 1,402.32 = 574.17 : x
2. Step 2: Convert to fraction form
   1,016.22/1,402.32 = 574.17/x
3. Step 3: Cross multiply
   1,016.22x = 1,402.32 × 574.17
4. Step 4: Simplify right side
   1,016.22x = 805,170.07
5. Step 5: Solve for x
   x = 805,170.07/1,016.22
6. Step 6: Final answer
   x = 792.32