Finding the Fourth Proportional to 3,901.64, 5,383.72 and 2,222.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,901.64 : 5,383.72 = 2,222.72 : x
2. Step 2: Convert to fraction form
   3,901.64/5,383.72 = 2,222.72/x
3. Step 3: Cross multiply
   3,901.64x = 5,383.72 × 2,222.72
4. Step 4: Simplify right side
   3,901.64x = 11,966,502.12
5. Step 5: Solve for x
   x = 11,966,502.12/3,901.64
6. Step 6: Final answer
   x = 3,067.05