Finding the Fourth Proportional to 3,895.37, 5,375.59 and 2,216.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,895.37 : 5,375.59 = 2,216.78 : x
2. Step 2: Convert to fraction form
   3,895.37/5,375.59 = 2,216.78/x
3. Step 3: Cross multiply
   3,895.37x = 5,375.59 × 2,216.78
4. Step 4: Simplify right side
   3,895.37x = 11,916,500.40
5. Step 5: Solve for x
   x = 11,916,500.40/3,895.37
6. Step 6: Final answer
   x = 3,059.14