Finding the Fourth Proportional to 2,519.87, 3,778.88 and 1,131.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,519.87 : 3,778.88 = 1,131.83 : x
2. Step 2: Convert to fraction form
   2,519.87/3,778.88 = 1,131.83/x
3. Step 3: Cross multiply
   2,519.87x = 3,778.88 × 1,131.83
4. Step 4: Simplify right side
   2,519.87x = 4,277,025.20
5. Step 5: Solve for x
   x = 4,277,025.20/2,519.87
6. Step 6: Final answer
   x = 1,697.32