Finding the Fourth Proportional to 3,099.42, 4,648.82 and 908.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,099.42 : 4,648.82 = 908.10 : x
2. Step 2: Convert to fraction form
   3,099.42/4,648.82 = 908.10/x
3. Step 3: Cross multiply
   3,099.42x = 4,648.82 × 908.10
4. Step 4: Simplify right side
   3,099.42x = 4,221,588.90
5. Step 5: Solve for x
   x = 4,221,588.90/3,099.42
6. Step 6: Final answer
   x = 1,362.06