Finding the Fourth Proportional to 5,726.27, 7,902.71 and 3,208.94

Step by Step Solution

1. Step 1: Write the proportion equation
   5,726.27 : 7,902.71 = 3,208.94 : x
2. Step 2: Convert to fraction form
   5,726.27/7,902.71 = 3,208.94/x
3. Step 3: Cross multiply
   5,726.27x = 7,902.71 × 3,208.94
4. Step 4: Simplify right side
   5,726.27x = 25,359,322.23
5. Step 5: Solve for x
   x = 25,359,322.23/5,726.27
6. Step 6: Final answer
   x = 4,428.59