Finding the Fourth Proportional to 2,768.80, 4,137.01 and 2,671.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,768.80 : 4,137.01 = 2,671.94 : x
2. Step 2: Convert to fraction form
   2,768.80/4,137.01 = 2,671.94/x
3. Step 3: Cross multiply
   2,768.80x = 4,137.01 × 2,671.94
4. Step 4: Simplify right side
   2,768.80x = 11,053,822.89
5. Step 5: Solve for x
   x = 11,053,822.89/2,768.80
6. Step 6: Final answer
   x = 3,992.28