Finding the Fourth Proportional to 5,978.29, 8,968.81 and 1,818.89

Step by Step Solution

1. Step 1: Write the proportion equation
   5,978.29 : 8,968.81 = 1,818.89 : x
2. Step 2: Convert to fraction form
   5,978.29/8,968.81 = 1,818.89/x
3. Step 3: Cross multiply
   5,978.29x = 8,968.81 × 1,818.89
4. Step 4: Simplify right side
   5,978.29x = 16,313,300.47
5. Step 5: Solve for x
   x = 16,313,300.47/5,978.29
6. Step 6: Final answer
   x = 2,728.76