Finding the Fourth Proportional to 3,895.32, 5,375.74 and 2,216.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,895.32 : 5,375.74 = 2,216.89 : x
2. Step 2: Convert to fraction form
   3,895.32/5,375.74 = 2,216.89/x
3. Step 3: Cross multiply
   3,895.32x = 5,375.74 × 2,216.89
4. Step 4: Simplify right side
   3,895.32x = 11,917,399.34
5. Step 5: Solve for x
   x = 11,917,399.34/3,895.32
6. Step 6: Final answer
   x = 3,059.41