Finding the Fourth Proportional to 5,978.55, 8,968.85 and 1,818.98

Step by Step Solution

1. Step 1: Write the proportion equation
   5,978.55 : 8,968.85 = 1,818.98 : x
2. Step 2: Convert to fraction form
   5,978.55/8,968.85 = 1,818.98/x
3. Step 3: Cross multiply
   5,978.55x = 8,968.85 × 1,818.98
4. Step 4: Simplify right side
   5,978.55x = 16,314,104.83
5. Step 5: Solve for x
   x = 16,314,104.83/5,978.55
6. Step 6: Final answer
   x = 2,728.77