Finding the Fourth Proportional to 3,100.63, 4,650.38 and 908.84

Step by Step Solution

1. Step 1: Write the proportion equation
   3,100.63 : 4,650.38 = 908.84 : x
2. Step 2: Convert to fraction form
   3,100.63/4,650.38 = 908.84/x
3. Step 3: Cross multiply
   3,100.63x = 4,650.38 × 908.84
4. Step 4: Simplify right side
   3,100.63x = 4,226,435.69
5. Step 5: Solve for x
   x = 4,226,435.69/3,100.63
6. Step 6: Final answer
   x = 1,363.09