Finding the Fourth Proportional to 2,681.49, 3,680.72 and 2,380.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,681.49 : 3,680.72 = 2,380.17 : x
2. Step 2: Convert to fraction form
   2,681.49/3,680.72 = 2,380.17/x
3. Step 3: Cross multiply
   2,681.49x = 3,680.72 × 2,380.17
4. Step 4: Simplify right side
   2,681.49x = 8,760,745.27
5. Step 5: Solve for x
   x = 8,760,745.27/2,681.49
6. Step 6: Final answer
   x = 3,267.12