Finding the Fourth Proportional to 3,997.82, 5,517.56 and 2,882.45

Step by Step Solution

1. Step 1: Write the proportion equation
   3,997.82 : 5,517.56 = 2,882.45 : x
2. Step 2: Convert to fraction form
   3,997.82/5,517.56 = 2,882.45/x
3. Step 3: Cross multiply
   3,997.82x = 5,517.56 × 2,882.45
4. Step 4: Simplify right side
   3,997.82x = 15,904,090.82
5. Step 5: Solve for x
   x = 15,904,090.82/3,997.82
6. Step 6: Final answer
   x = 3,978.19