Finding the Fourth Proportional to 2,456.38, 3,388.35 and 1,571.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.38 : 3,388.35 = 1,571.86 : x
2. Step 2: Convert to fraction form
   2,456.38/3,388.35 = 1,571.86/x
3. Step 3: Cross multiply
   2,456.38x = 3,388.35 × 1,571.86
4. Step 4: Simplify right side
   2,456.38x = 5,326,011.83
5. Step 5: Solve for x
   x = 5,326,011.83/2,456.38
6. Step 6: Final answer
   x = 2,168.24