Finding the Fourth Proportional to 5,180.55, 7,149.16 and 2,822.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,180.55 : 7,149.16 = 2,822.69 : x
2. Step 2: Convert to fraction form
   5,180.55/7,149.16 = 2,822.69/x
3. Step 3: Cross multiply
   5,180.55x = 7,149.16 × 2,822.69
4. Step 4: Simplify right side
   5,180.55x = 20,179,846.45
5. Step 5: Solve for x
   x = 20,179,846.45/5,180.55
6. Step 6: Final answer
   x = 3,895.31