Finding the Fourth Proportional to 1,017.18, 1,403.82 and 575.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017.18 : 1,403.82 = 575.10 : x
2. Step 2: Convert to fraction form
   1,017.18/1,403.82 = 575.10/x
3. Step 3: Cross multiply
   1,017.18x = 1,403.82 × 575.10
4. Step 4: Simplify right side
   1,017.18x = 807,336.88
5. Step 5: Solve for x
   x = 807,336.88/1,017.18
6. Step 6: Final answer
   x = 793.70