Finding the Fourth Proportional to 2,612.55, 3,918.38 and 1,519.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.55 : 3,918.38 = 1,519.05 : x
2. Step 2: Convert to fraction form
   2,612.55/3,918.38 = 1,519.05/x
3. Step 3: Cross multiply
   2,612.55x = 3,918.38 × 1,519.05
4. Step 4: Simplify right side
   2,612.55x = 5,952,222.24
5. Step 5: Solve for x
   x = 5,952,222.24/2,612.55
6. Step 6: Final answer
   x = 2,278.32