Finding the Fourth Proportional to 3,718.94, 5,131.91 and 2,040

Step by Step Solution

1. Step 1: Write the proportion equation
   3,718.94 : 5,131.91 = 2,040 : x
2. Step 2: Convert to fraction form
   3,718.94/5,131.91 = 2,040/x
3. Step 3: Cross multiply
   3,718.94x = 5,131.91 × 2,040
4. Step 4: Simplify right side
   3,718.94x = 10,469,086.20
5. Step 5: Solve for x
   x = 10,469,086.20/3,718.94
6. Step 6: Final answer
   x = 2,815.08