Finding the Fourth Proportional to 1,016.83, 1,403.30 and 574.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.83 : 1,403.30 = 574.74 : x
2. Step 2: Convert to fraction form
   1,016.83/1,403.30 = 574.74/x
3. Step 3: Cross multiply
   1,016.83x = 1,403.30 × 574.74
4. Step 4: Simplify right side
   1,016.83x = 806,532.64
5. Step 5: Solve for x
   x = 806,532.64/1,016.83
6. Step 6: Final answer
   x = 793.18