Finding the Fourth Proportional to 2,551.40, 3,827.84 and 908.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,551.40 : 3,827.84 = 908.72 : x
2. Step 2: Convert to fraction form
   2,551.40/3,827.84 = 908.72/x
3. Step 3: Cross multiply
   2,551.40x = 3,827.84 × 908.72
4. Step 4: Simplify right side
   2,551.40x = 3,478,434.76
5. Step 5: Solve for x
   x = 3,478,434.76/2,551.40
6. Step 6: Final answer
   x = 1,363.34