Finding the Fourth Proportional to 3,718.52, 5,131.47 and 2,039.92

Step by Step Solution

1. Step 1: Write the proportion equation
   3,718.52 : 5,131.47 = 2,039.92 : x
2. Step 2: Convert to fraction form
   3,718.52/5,131.47 = 2,039.92/x
3. Step 3: Cross multiply
   3,718.52x = 5,131.47 × 2,039.92
4. Step 4: Simplify right side
   3,718.52x = 10,467,775.45
5. Step 5: Solve for x
   x = 10,467,775.45/3,718.52
6. Step 6: Final answer
   x = 2,815.04