Finding the Fourth Proportional to 1,017.57, 1,404.18 and 575.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017.57 : 1,404.18 = 575.46 : x
2. Step 2: Convert to fraction form
   1,017.57/1,404.18 = 575.46/x
3. Step 3: Cross multiply
   1,017.57x = 1,404.18 × 575.46
4. Step 4: Simplify right side
   1,017.57x = 808,049.42
5. Step 5: Solve for x
   x = 808,049.42/1,017.57
6. Step 6: Final answer
   x = 794.10