Finding the Fourth Proportional to 3,978.41, 5,960.79 and 2,741.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,978.41 : 5,960.79 = 2,741.40 : x
2. Step 2: Convert to fraction form
   3,978.41/5,960.79 = 2,741.40/x
3. Step 3: Cross multiply
   3,978.41x = 5,960.79 × 2,741.40
4. Step 4: Simplify right side
   3,978.41x = 16,340,909.71
5. Step 5: Solve for x
   x = 16,340,909.71/3,978.41
6. Step 6: Final answer
   x = 4,107.40