Finding the Fourth Proportional to 2,633.39, 3,947.24 and 1,399.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,633.39 : 3,947.24 = 1,399.55 : x
2. Step 2: Convert to fraction form
   2,633.39/3,947.24 = 1,399.55/x
3. Step 3: Cross multiply
   2,633.39x = 3,947.24 × 1,399.55
4. Step 4: Simplify right side
   2,633.39x = 5,524,373.11
5. Step 5: Solve for x
   x = 5,524,373.11/2,633.39
6. Step 6: Final answer
   x = 2,097.82