Finding the Fourth Proportional to 2,726, 3,737.31 and 2,676.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,726 : 3,737.31 = 2,676.80 : x
2. Step 2: Convert to fraction form
   2,726/3,737.31 = 2,676.80/x
3. Step 3: Cross multiply
   2,726x = 3,737.31 × 2,676.80
4. Step 4: Simplify right side
   2,726x = 10,004,018.02
5. Step 5: Solve for x
   x = 10,004,018.02/2,726
6. Step 6: Final answer
   x = 3,669.85