Finding the Fourth Proportional to 3,946.86, 5,447.38 and 2,353.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,946.86 : 5,447.38 = 2,353.61 : x
2. Step 2: Convert to fraction form
   3,946.86/5,447.38 = 2,353.61/x
3. Step 3: Cross multiply
   3,946.86x = 5,447.38 × 2,353.61
4. Step 4: Simplify right side
   3,946.86x = 12,821,009.89
5. Step 5: Solve for x
   x = 12,821,009.89/3,946.86
6. Step 6: Final answer
   x = 3,248.41