Finding the Fourth Proportional to 2,571.33, 3,548.46 and 1,392.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,571.33 : 3,548.46 = 1,392.42 : x
2. Step 2: Convert to fraction form
   2,571.33/3,548.46 = 1,392.42/x
3. Step 3: Cross multiply
   2,571.33x = 3,548.46 × 1,392.42
4. Step 4: Simplify right side
   2,571.33x = 4,940,946.67
5. Step 5: Solve for x
   x = 4,940,946.67/2,571.33
6. Step 6: Final answer
   x = 1,921.55