Finding the Fourth Proportional to 2,571.86, 3,549.15 and 1,392.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,571.86 : 3,549.15 = 1,392.92 : x
2. Step 2: Convert to fraction form
   2,571.86/3,549.15 = 1,392.92/x
3. Step 3: Cross multiply
   2,571.86x = 3,549.15 × 1,392.92
4. Step 4: Simplify right side
   2,571.86x = 4,943,664.27
5. Step 5: Solve for x
   x = 4,943,664.27/2,571.86
6. Step 6: Final answer
   x = 1,922.22