Finding the Fourth Proportional to 3,868.86, 5,339.32 and 2,356.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,868.86 : 5,339.32 = 2,356.22 : x
2. Step 2: Convert to fraction form
   3,868.86/5,339.32 = 2,356.22/x
3. Step 3: Cross multiply
   3,868.86x = 5,339.32 × 2,356.22
4. Step 4: Simplify right side
   3,868.86x = 12,580,612.57
5. Step 5: Solve for x
   x = 12,580,612.57/3,868.86
6. Step 6: Final answer
   x = 3,251.76