Finding the Fourth Proportional to 3,718.68, 5,131.56 and 2,039.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,718.68 : 5,131.56 = 2,039.88 : x
2. Step 2: Convert to fraction form
   3,718.68/5,131.56 = 2,039.88/x
3. Step 3: Cross multiply
   3,718.68x = 5,131.56 × 2,039.88
4. Step 4: Simplify right side
   3,718.68x = 10,467,766.61
5. Step 5: Solve for x
   x = 10,467,766.61/3,718.68
6. Step 6: Final answer
   x = 2,814.91