Finding the Fourth Proportional to 5,518.48, 8,279.27 and 2,233.89

Step by Step Solution

1. Step 1: Write the proportion equation
   5,518.48 : 8,279.27 = 2,233.89 : x
2. Step 2: Convert to fraction form
   5,518.48/8,279.27 = 2,233.89/x
3. Step 3: Cross multiply
   5,518.48x = 8,279.27 × 2,233.89
4. Step 4: Simplify right side
   5,518.48x = 18,494,978.46
5. Step 5: Solve for x
   x = 18,494,978.46/5,518.48
6. Step 6: Final answer
   x = 3,351.46