Finding the Fourth Proportional to 6,443.78, 9,667.49 and 2,284.83

Step by Step Solution

1. Step 1: Write the proportion equation
   6,443.78 : 9,667.49 = 2,284.83 : x
2. Step 2: Convert to fraction form
   6,443.78/9,667.49 = 2,284.83/x
3. Step 3: Cross multiply
   6,443.78x = 9,667.49 × 2,284.83
4. Step 4: Simplify right side
   6,443.78x = 22,088,559.75
5. Step 5: Solve for x
   x = 22,088,559.75/6,443.78
6. Step 6: Final answer
   x = 3,427.89