Finding the Fourth Proportional to 2,729.71, 3,742.42 and 2,680.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,729.71 : 3,742.42 = 2,680.48 : x
2. Step 2: Convert to fraction form
   2,729.71/3,742.42 = 2,680.48/x
3. Step 3: Cross multiply
   2,729.71x = 3,742.42 × 2,680.48
4. Step 4: Simplify right side
   2,729.71x = 10,031,481.96
5. Step 5: Solve for x
   x = 10,031,481.96/2,729.71
6. Step 6: Final answer
   x = 3,674.93