Finding the Fourth Proportional to 1,016.16, 1,402.20 and 574.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.16 : 1,402.20 = 574.02 : x
2. Step 2: Convert to fraction form
   1,016.16/1,402.20 = 574.02/x
3. Step 3: Cross multiply
   1,016.16x = 1,402.20 × 574.02
4. Step 4: Simplify right side
   1,016.16x = 804,890.84
5. Step 5: Solve for x
   x = 804,890.84/1,016.16
6. Step 6: Final answer
   x = 792.09