Finding the Fourth Proportional to 3,718.69, 5,131.86 and 2,040.26

Step by Step Solution

1. Step 1: Write the proportion equation
   3,718.69 : 5,131.86 = 2,040.26 : x
2. Step 2: Convert to fraction form
   3,718.69/5,131.86 = 2,040.26/x
3. Step 3: Cross multiply
   3,718.69x = 5,131.86 × 2,040.26
4. Step 4: Simplify right side
   3,718.69x = 10,470,328.68
5. Step 5: Solve for x
   x = 10,470,328.68/3,718.69
6. Step 6: Final answer
   x = 2,815.60