Finding the Fourth Proportional to 3,984.82, 5,978.44 and 2,038.39

Step by Step Solution

1. Step 1: Write the proportion equation
   3,984.82 : 5,978.44 = 2,038.39 : x
2. Step 2: Convert to fraction form
   3,984.82/5,978.44 = 2,038.39/x
3. Step 3: Cross multiply
   3,984.82x = 5,978.44 × 2,038.39
4. Step 4: Simplify right side
   3,984.82x = 12,186,362.42
5. Step 5: Solve for x
   x = 12,186,362.42/3,984.82
6. Step 6: Final answer
   x = 3,058.20