Finding the Fourth Proportional to 5,198.83, 7,800.89 and 2,601.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,198.83 : 7,800.89 = 2,601.56 : x
2. Step 2: Convert to fraction form
   5,198.83/7,800.89 = 2,601.56/x
3. Step 3: Cross multiply
   5,198.83x = 7,800.89 × 2,601.56
4. Step 4: Simplify right side
   5,198.83x = 20,294,489.88
5. Step 5: Solve for x
   x = 20,294,489.88/5,198.83
6. Step 6: Final answer
   x = 3,903.67