Finding the Fourth Proportional to 2,288.42, 3,426.09 and 2,143.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.42 : 3,426.09 = 2,143.10 : x
2. Step 2: Convert to fraction form
   2,288.42/3,426.09 = 2,143.10/x
3. Step 3: Cross multiply
   2,288.42x = 3,426.09 × 2,143.10
4. Step 4: Simplify right side
   2,288.42x = 7,342,454.01
5. Step 5: Solve for x
   x = 7,342,454.01/2,288.42
6. Step 6: Final answer
   x = 3,208.53