Finding the Fourth Proportional to 2,550.08, 3,819.78 and 1,313.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,550.08 : 3,819.78 = 1,313.72 : x
2. Step 2: Convert to fraction form
   2,550.08/3,819.78 = 1,313.72/x
3. Step 3: Cross multiply
   2,550.08x = 3,819.78 × 1,313.72
4. Step 4: Simplify right side
   2,550.08x = 5,018,121.38
5. Step 5: Solve for x
   x = 5,018,121.38/2,550.08
6. Step 6: Final answer
   x = 1,967.83