Finding the Fourth Proportional to 1,105.10, 1,524.03 and 755.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.10 : 1,524.03 = 755.90 : x
2. Step 2: Convert to fraction form
   1,105.10/1,524.03 = 755.90/x
3. Step 3: Cross multiply
   1,105.10x = 1,524.03 × 755.90
4. Step 4: Simplify right side
   1,105.10x = 1,152,014.28
5. Step 5: Solve for x
   x = 1,152,014.28/1,105.10
6. Step 6: Final answer
   x = 1,042.45