Finding the Fourth Proportional to 2,757.89, 4,131.62 and 2,138.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,757.89 : 4,131.62 = 2,138.56 : x
2. Step 2: Convert to fraction form
   2,757.89/4,131.62 = 2,138.56/x
3. Step 3: Cross multiply
   2,757.89x = 4,131.62 × 2,138.56
4. Step 4: Simplify right side
   2,757.89x = 8,835,717.27
5. Step 5: Solve for x
   x = 8,835,717.27/2,757.89
6. Step 6: Final answer
   x = 3,203.80