Finding the Fourth Proportional to 1,105.20, 1,524.42 and 908.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.20 : 1,524.42 = 908.37 : x
2. Step 2: Convert to fraction form
   1,105.20/1,524.42 = 908.37/x
3. Step 3: Cross multiply
   1,105.20x = 1,524.42 × 908.37
4. Step 4: Simplify right side
   1,105.20x = 1,384,737.40
5. Step 5: Solve for x
   x = 1,384,737.40/1,105.20
6. Step 6: Final answer
   x = 1,252.93