Finding the Fourth Proportional to 2,638.37, 3,640.83 and 1,519.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,638.37 : 3,640.83 = 1,519.07 : x
2. Step 2: Convert to fraction form
   2,638.37/3,640.83 = 1,519.07/x
3. Step 3: Cross multiply
   2,638.37x = 3,640.83 × 1,519.07
4. Step 4: Simplify right side
   2,638.37x = 5,530,651.73
5. Step 5: Solve for x
   x = 5,530,651.73/2,638.37
6. Step 6: Final answer
   x = 2,096.24