Finding the Fourth Proportional to 6,456.78, 8,910 and 3,662.28

Step by Step Solution

1. Step 1: Write the proportion equation
   6,456.78 : 8,910 = 3,662.28 : x
2. Step 2: Convert to fraction form
   6,456.78/8,910 = 3,662.28/x
3. Step 3: Cross multiply
   6,456.78x = 8,910 × 3,662.28
4. Step 4: Simplify right side
   6,456.78x = 32,630,914.80
5. Step 5: Solve for x
   x = 32,630,914.80/6,456.78
6. Step 6: Final answer
   x = 5,053.74