Finding the Fourth Proportional to 5,978.16, 8,963.82 and 2,279.34

Step by Step Solution

1. Step 1: Write the proportion equation
   5,978.16 : 8,963.82 = 2,279.34 : x
2. Step 2: Convert to fraction form
   5,978.16/8,963.82 = 2,279.34/x
3. Step 3: Cross multiply
   5,978.16x = 8,963.82 × 2,279.34
4. Step 4: Simplify right side
   5,978.16x = 20,431,593.48
5. Step 5: Solve for x
   x = 20,431,593.48/5,978.16
6. Step 6: Final answer
   x = 3,417.71