Finding the Fourth Proportional to 2,143.32, 3,207.69 and 1,705.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143.32 : 3,207.69 = 1,705.92 : x
2. Step 2: Convert to fraction form
   2,143.32/3,207.69 = 1,705.92/x
3. Step 3: Cross multiply
   2,143.32x = 3,207.69 × 1,705.92
4. Step 4: Simplify right side
   2,143.32x = 5,472,062.52
5. Step 5: Solve for x
   x = 5,472,062.52/2,143.32
6. Step 6: Final answer
   x = 2,553.08