Finding the Fourth Proportional to 1,087.98, 1,500.72 and 908.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087.98 : 1,500.72 = 908.04 : x
2. Step 2: Convert to fraction form
   1,087.98/1,500.72 = 908.04/x
3. Step 3: Cross multiply
   1,087.98x = 1,500.72 × 908.04
4. Step 4: Simplify right side
   1,087.98x = 1,362,713.79
5. Step 5: Solve for x
   x = 1,362,713.79/1,087.98
6. Step 6: Final answer
   x = 1,252.52