Finding the Fourth Proportional to 1,016.84, 1,403.31 and 574.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.84 : 1,403.31 = 574.81 : x
2. Step 2: Convert to fraction form
   1,016.84/1,403.31 = 574.81/x
3. Step 3: Cross multiply
   1,016.84x = 1,403.31 × 574.81
4. Step 4: Simplify right side
   1,016.84x = 806,636.62
5. Step 5: Solve for x
   x = 806,636.62/1,016.84
6. Step 6: Final answer
   x = 793.28