Finding the Fourth Proportional to 5,171.42, 7,760.38 and 2,708.22

Step by Step Solution

1. Step 1: Write the proportion equation
   5,171.42 : 7,760.38 = 2,708.22 : x
2. Step 2: Convert to fraction form
   5,171.42/7,760.38 = 2,708.22/x
3. Step 3: Cross multiply
   5,171.42x = 7,760.38 × 2,708.22
4. Step 4: Simplify right side
   5,171.42x = 21,016,816.32
5. Step 5: Solve for x
   x = 21,016,816.32/5,171.42
6. Step 6: Final answer
   x = 4,064.03