Finding the Fourth Proportional to 1,017.53, 1,404.22 and 575.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017.53 : 1,404.22 = 575.50 : x
2. Step 2: Convert to fraction form
   1,017.53/1,404.22 = 575.50/x
3. Step 3: Cross multiply
   1,017.53x = 1,404.22 × 575.50
4. Step 4: Simplify right side
   1,017.53x = 808,132.16
5. Step 5: Solve for x
   x = 808,132.16/1,017.53
6. Step 6: Final answer
   x = 794.21