Finding the Fourth Proportional to 1,103.48, 1,654.28 and 908.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.48 : 1,654.28 = 908.50 : x
2. Step 2: Convert to fraction form
   1,103.48/1,654.28 = 908.50/x
3. Step 3: Cross multiply
   1,103.48x = 1,654.28 × 908.50
4. Step 4: Simplify right side
   1,103.48x = 1,502,913.38
5. Step 5: Solve for x
   x = 1,502,913.38/1,103.48
6. Step 6: Final answer
   x = 1,361.98