Finding the Fourth Proportional to 2,559, 3,819.81 and 2,196.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,559 : 3,819.81 = 2,196.12 : x
2. Step 2: Convert to fraction form
   2,559/3,819.81 = 2,196.12/x
3. Step 3: Cross multiply
   2,559x = 3,819.81 × 2,196.12
4. Step 4: Simplify right side
   2,559x = 8,388,761.14
5. Step 5: Solve for x
   x = 8,388,761.14/2,559
6. Step 6: Final answer
   x = 3,278.14