Finding the Fourth Proportional to 3,718.58, 5,131.76 and 2,040.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,718.58 : 5,131.76 = 2,040.12 : x
2. Step 2: Convert to fraction form
   3,718.58/5,131.76 = 2,040.12/x
3. Step 3: Cross multiply
   3,718.58x = 5,131.76 × 2,040.12
4. Step 4: Simplify right side
   3,718.58x = 10,469,396.01
5. Step 5: Solve for x
   x = 10,469,396.01/3,718.58
6. Step 6: Final answer
   x = 2,815.43