Finding the Fourth Proportional to 2,447.12, 3,670.20 and 908.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,447.12 : 3,670.20 = 908.24 : x
2. Step 2: Convert to fraction form
   2,447.12/3,670.20 = 908.24/x
3. Step 3: Cross multiply
   2,447.12x = 3,670.20 × 908.24
4. Step 4: Simplify right side
   2,447.12x = 3,333,422.45
5. Step 5: Solve for x
   x = 3,333,422.45/2,447.12
6. Step 6: Final answer
   x = 1,362.18