Finding the Fourth Proportional to 3,978.01, 5,954.55 and 2,738.17

Step by Step Solution

1. Step 1: Write the proportion equation
   3,978.01 : 5,954.55 = 2,738.17 : x
2. Step 2: Convert to fraction form
   3,978.01/5,954.55 = 2,738.17/x
3. Step 3: Cross multiply
   3,978.01x = 5,954.55 × 2,738.17
4. Step 4: Simplify right side
   3,978.01x = 16,304,570.17
5. Step 5: Solve for x
   x = 16,304,570.17/3,978.01
6. Step 6: Final answer
   x = 4,098.68