Finding the Fourth Proportional to 2,613.51, 3,919.02 and 1,518.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.51 : 3,919.02 = 1,518.18 : x
2. Step 2: Convert to fraction form
   2,613.51/3,919.02 = 1,518.18/x
3. Step 3: Cross multiply
   2,613.51x = 3,919.02 × 1,518.18
4. Step 4: Simplify right side
   2,613.51x = 5,949,777.78
5. Step 5: Solve for x
   x = 5,949,777.78/2,613.51
6. Step 6: Final answer
   x = 2,276.55