Finding the Fourth Proportional to 2,618.83, 3,614.01 and 1,439.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,618.83 : 3,614.01 = 1,439.94 : x
2. Step 2: Convert to fraction form
   2,618.83/3,614.01 = 1,439.94/x
3. Step 3: Cross multiply
   2,618.83x = 3,614.01 × 1,439.94
4. Step 4: Simplify right side
   2,618.83x = 5,203,957.56
5. Step 5: Solve for x
   x = 5,203,957.56/2,618.83
6. Step 6: Final answer
   x = 1,987.13