Finding the Fourth Proportional to 5,978.95, 8,949.97 and 3,894.47

Step by Step Solution

1. Step 1: Write the proportion equation
   5,978.95 : 8,949.97 = 3,894.47 : x
2. Step 2: Convert to fraction form
   5,978.95/8,949.97 = 3,894.47/x
3. Step 3: Cross multiply
   5,978.95x = 8,949.97 × 3,894.47
4. Step 4: Simplify right side
   5,978.95x = 34,855,359.81
5. Step 5: Solve for x
   x = 34,855,359.81/5,978.95
6. Step 6: Final answer
   x = 5,829.68