Finding the Fourth Proportional to 2,730.21, 3,743.12 and 2,680.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,730.21 : 3,743.12 = 2,680.98 : x
2. Step 2: Convert to fraction form
   2,730.21/3,743.12 = 2,680.98/x
3. Step 3: Cross multiply
   2,730.21x = 3,743.12 × 2,680.98
4. Step 4: Simplify right side
   2,730.21x = 10,035,216.45
5. Step 5: Solve for x
   x = 10,035,216.45/2,730.21
6. Step 6: Final answer
   x = 3,675.62