Finding the Fourth Proportional to 3,680.16, 5,078.67 and 2,108.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,680.16 : 5,078.67 = 2,108.25 : x
2. Step 2: Convert to fraction form
   3,680.16/5,078.67 = 2,108.25/x
3. Step 3: Cross multiply
   3,680.16x = 5,078.67 × 2,108.25
4. Step 4: Simplify right side
   3,680.16x = 10,707,106.03
5. Step 5: Solve for x
   x = 10,707,106.03/3,680.16
6. Step 6: Final answer
   x = 2,909.41