Finding the Fourth Proportional to 2,146.24, 2,959.82 and 1,399.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146.24 : 2,959.82 = 1,399.92 : x
2. Step 2: Convert to fraction form
   2,146.24/2,959.82 = 1,399.92/x
3. Step 3: Cross multiply
   2,146.24x = 2,959.82 × 1,399.92
4. Step 4: Simplify right side
   2,146.24x = 4,143,511.21
5. Step 5: Solve for x
   x = 4,143,511.21/2,146.24
6. Step 6: Final answer
   x = 1,930.59