Finding the Fourth Proportional to 2,719.78, 3,753.83 and 1,540.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,719.78 : 3,753.83 = 1,540.85 : x
2. Step 2: Convert to fraction form
   2,719.78/3,753.83 = 1,540.85/x
3. Step 3: Cross multiply
   2,719.78x = 3,753.83 × 1,540.85
4. Step 4: Simplify right side
   2,719.78x = 5,784,096.41
5. Step 5: Solve for x
   x = 5,784,096.41/2,719.78
6. Step 6: Final answer
   x = 2,126.68