Finding the Fourth Proportional to 3,566.45, 4,918.69 and 2,680.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,566.45 : 4,918.69 = 2,680.72 : x
2. Step 2: Convert to fraction form
   3,566.45/4,918.69 = 2,680.72/x
3. Step 3: Cross multiply
   3,566.45x = 4,918.69 × 2,680.72
4. Step 4: Simplify right side
   3,566.45x = 13,185,630.66
5. Step 5: Solve for x
   x = 13,185,630.66/3,566.45
6. Step 6: Final answer
   x = 3,697.13