Finding the Fourth Proportional to 1,013.87, 1,521.59 and 754.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,013.87 : 1,521.59 = 754.47 : x
2. Step 2: Convert to fraction form
   1,013.87/1,521.59 = 754.47/x
3. Step 3: Cross multiply
   1,013.87x = 1,521.59 × 754.47
4. Step 4: Simplify right side
   1,013.87x = 1,147,990.23
5. Step 5: Solve for x
   x = 1,147,990.23/1,013.87
6. Step 6: Final answer
   x = 1,132.28