Finding the Fourth Proportional to 6,505.98, 8,978.26 and 3,521.84

Step by Step Solution

1. Step 1: Write the proportion equation
   6,505.98 : 8,978.26 = 3,521.84 : x
2. Step 2: Convert to fraction form
   6,505.98/8,978.26 = 3,521.84/x
3. Step 3: Cross multiply
   6,505.98x = 8,978.26 × 3,521.84
4. Step 4: Simplify right side
   6,505.98x = 31,619,995.20
5. Step 5: Solve for x
   x = 31,619,995.20/6,505.98
6. Step 6: Final answer
   x = 4,860.14