Finding the Fourth Proportional to 5,196.16, 7,787.34 and 2,271.28

Step by Step Solution

1. Step 1: Write the proportion equation
   5,196.16 : 7,787.34 = 2,271.28 : x
2. Step 2: Convert to fraction form
   5,196.16/7,787.34 = 2,271.28/x
3. Step 3: Cross multiply
   5,196.16x = 7,787.34 × 2,271.28
4. Step 4: Simplify right side
   5,196.16x = 17,687,229.60
5. Step 5: Solve for x
   x = 17,687,229.60/5,196.16
6. Step 6: Final answer
   x = 3,403.90