Finding the Fourth Proportional to 1,017.32, 1,520.01 and 752.65

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017.32 : 1,520.01 = 752.65 : x
2. Step 2: Convert to fraction form
   1,017.32/1,520.01 = 752.65/x
3. Step 3: Cross multiply
   1,017.32x = 1,520.01 × 752.65
4. Step 4: Simplify right side
   1,017.32x = 1,144,031.73
5. Step 5: Solve for x
   x = 1,144,031.73/1,017.32
6. Step 6: Final answer
   x = 1,124.56