Finding the Fourth Proportional to 5,196.72, 7,795.35 and 2,598.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,196.72 : 7,795.35 = 2,598.78 : x
2. Step 2: Convert to fraction form
   5,196.72/7,795.35 = 2,598.78/x
3. Step 3: Cross multiply
   5,196.72x = 7,795.35 × 2,598.78
4. Step 4: Simplify right side
   5,196.72x = 20,258,399.67
5. Step 5: Solve for x
   x = 20,258,399.67/5,196.72
6. Step 6: Final answer
   x = 3,898.31