Finding the Fourth Proportional to 2,698.38, 4,048.83 and 1,399.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,698.38 : 4,048.83 = 1,399.14 : x
2. Step 2: Convert to fraction form
   2,698.38/4,048.83 = 1,399.14/x
3. Step 3: Cross multiply
   2,698.38x = 4,048.83 × 1,399.14
4. Step 4: Simplify right side
   2,698.38x = 5,664,880.01
5. Step 5: Solve for x
   x = 5,664,880.01/2,698.38
6. Step 6: Final answer
   x = 2,099.36