Finding the Fourth Proportional to 1,013.20, 1,520.52 and 753.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,013.20 : 1,520.52 = 753.82 : x
2. Step 2: Convert to fraction form
   1,013.20/1,520.52 = 753.82/x
3. Step 3: Cross multiply
   1,013.20x = 1,520.52 × 753.82
4. Step 4: Simplify right side
   1,013.20x = 1,146,198.39
5. Step 5: Solve for x
   x = 1,146,198.39/1,013.20
6. Step 6: Final answer
   x = 1,131.27