Finding the Fourth Proportional to 5,791.78, 7,983.81 and 3,549.49

Step by Step Solution

1. Step 1: Write the proportion equation
   5,791.78 : 7,983.81 = 3,549.49 : x
2. Step 2: Convert to fraction form
   5,791.78/7,983.81 = 3,549.49/x
3. Step 3: Cross multiply
   5,791.78x = 7,983.81 × 3,549.49
4. Step 4: Simplify right side
   5,791.78x = 28,338,436.01
5. Step 5: Solve for x
   x = 28,338,436.01/5,791.78
6. Step 6: Final answer
   x = 4,892.88