Finding the Fourth Proportional to 5,978.76, 8,960.82 and 3,376.20

Step by Step Solution

1. Step 1: Write the proportion equation
   5,978.76 : 8,960.82 = 3,376.20 : x
2. Step 2: Convert to fraction form
   5,978.76/8,960.82 = 3,376.20/x
3. Step 3: Cross multiply
   5,978.76x = 8,960.82 × 3,376.20
4. Step 4: Simplify right side
   5,978.76x = 30,253,520.48
5. Step 5: Solve for x
   x = 30,253,520.48/5,978.76
6. Step 6: Final answer
   x = 5,060.17