Finding the Fourth Proportional to 3,100.56, 4,651.28 and 908.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,100.56 : 4,651.28 = 908.98 : x
2. Step 2: Convert to fraction form
   3,100.56/4,651.28 = 908.98/x
3. Step 3: Cross multiply
   3,100.56x = 4,651.28 × 908.98
4. Step 4: Simplify right side
   3,100.56x = 4,227,920.49
5. Step 5: Solve for x
   x = 4,227,920.49/3,100.56
6. Step 6: Final answer
   x = 1,363.60