Finding the Fourth Proportional to 3,997.89, 5,477.15 and 3,848.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,997.89 : 5,477.15 = 3,848.28 : x
2. Step 2: Convert to fraction form
   3,997.89/5,477.15 = 3,848.28/x
3. Step 3: Cross multiply
   3,997.89x = 5,477.15 × 3,848.28
4. Step 4: Simplify right side
   3,997.89x = 21,077,587.56
5. Step 5: Solve for x
   x = 21,077,587.56/3,997.89
6. Step 6: Final answer
   x = 5,272.18