Finding the Fourth Proportional to 3,906.56, 5,857.23 and 2,152.39

Step by Step Solution

1. Step 1: Write the proportion equation
   3,906.56 : 5,857.23 = 2,152.39 : x
2. Step 2: Convert to fraction form
   3,906.56/5,857.23 = 2,152.39/x
3. Step 3: Cross multiply
   3,906.56x = 5,857.23 × 2,152.39
4. Step 4: Simplify right side
   3,906.56x = 12,607,043.28
5. Step 5: Solve for x
   x = 12,607,043.28/3,906.56
6. Step 6: Final answer
   x = 3,227.15