Finding the Fourth Proportional to 4,669.46, 6,443.78 and 2,680.10

Step by Step Solution

1. Step 1: Write the proportion equation
   4,669.46 : 6,443.78 = 2,680.10 : x
2. Step 2: Convert to fraction form
   4,669.46/6,443.78 = 2,680.10/x
3. Step 3: Cross multiply
   4,669.46x = 6,443.78 × 2,680.10
4. Step 4: Simplify right side
   4,669.46x = 17,269,974.78
5. Step 5: Solve for x
   x = 17,269,974.78/4,669.46
6. Step 6: Final answer
   x = 3,698.50