Finding the Fourth Proportional to 5,718.89, 7,892.01 and 3,200.97

Step by Step Solution

1. Step 1: Write the proportion equation
   5,718.89 : 7,892.01 = 3,200.97 : x
2. Step 2: Convert to fraction form
   5,718.89/7,892.01 = 3,200.97/x
3. Step 3: Cross multiply
   5,718.89x = 7,892.01 × 3,200.97
4. Step 4: Simplify right side
   5,718.89x = 25,262,087.25
5. Step 5: Solve for x
   x = 25,262,087.25/5,718.89
6. Step 6: Final answer
   x = 4,417.31