Finding the Fourth Proportional to 2,446.72, 3,670.16 and 908.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,446.72 : 3,670.16 = 908.80 : x
2. Step 2: Convert to fraction form
   2,446.72/3,670.16 = 908.80/x
3. Step 3: Cross multiply
   2,446.72x = 3,670.16 × 908.80
4. Step 4: Simplify right side
   2,446.72x = 3,335,441.41
5. Step 5: Solve for x
   x = 3,335,441.41/2,446.72
6. Step 6: Final answer
   x = 1,363.23