Finding the Fourth Proportional to 2,225.25, 3,337.86 and 908.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,225.25 : 3,337.86 = 908.72 : x
2. Step 2: Convert to fraction form
   2,225.25/3,337.86 = 908.72/x
3. Step 3: Cross multiply
   2,225.25x = 3,337.86 × 908.72
4. Step 4: Simplify right side
   2,225.25x = 3,033,174.26
5. Step 5: Solve for x
   x = 3,033,174.26/2,225.25
6. Step 6: Final answer
   x = 1,363.07