Finding the Fourth Proportional to 2,618.52, 3,921.29 and 1,519.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,618.52 : 3,921.29 = 1,519.55 : x
2. Step 2: Convert to fraction form
   2,618.52/3,921.29 = 1,519.55/x
3. Step 3: Cross multiply
   2,618.52x = 3,921.29 × 1,519.55
4. Step 4: Simplify right side
   2,618.52x = 5,958,609.82
5. Step 5: Solve for x
   x = 5,958,609.82/2,618.52
6. Step 6: Final answer
   x = 2,275.56