Finding the Fourth Proportional to 5,276.56, 7,914.78 and 2,198.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,276.56 : 7,914.78 = 2,198.56 : x
2. Step 2: Convert to fraction form
   5,276.56/7,914.78 = 2,198.56/x
3. Step 3: Cross multiply
   5,276.56x = 7,914.78 × 2,198.56
4. Step 4: Simplify right side
   5,276.56x = 17,401,118.72
5. Step 5: Solve for x
   x = 17,401,118.72/5,276.56
6. Step 6: Final answer
   x = 3,297.82