Finding the Fourth Proportional to 1,018.18, 1,524.89 and 743.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018.18 : 1,524.89 = 743.59 : x
2. Step 2: Convert to fraction form
   1,018.18/1,524.89 = 743.59/x
3. Step 3: Cross multiply
   1,018.18x = 1,524.89 × 743.59
4. Step 4: Simplify right side
   1,018.18x = 1,133,891.00
5. Step 5: Solve for x
   x = 1,133,891.00/1,018.18
6. Step 6: Final answer
   x = 1,113.65