Finding the Fourth Proportional to 1,017.50, 1,404.36 and 575.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017.50 : 1,404.36 = 575.42 : x
2. Step 2: Convert to fraction form
   1,017.50/1,404.36 = 575.42/x
3. Step 3: Cross multiply
   1,017.50x = 1,404.36 × 575.42
4. Step 4: Simplify right side
   1,017.50x = 808,096.83
5. Step 5: Solve for x
   x = 808,096.83/1,017.50
6. Step 6: Final answer
   x = 794.20