Finding the Fourth Proportional to 2,216.55, 3,320.70 and 1,104.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,216.55 : 3,320.70 = 1,104.69 : x
2. Step 2: Convert to fraction form
   2,216.55/3,320.70 = 1,104.69/x
3. Step 3: Cross multiply
   2,216.55x = 3,320.70 × 1,104.69
4. Step 4: Simplify right side
   2,216.55x = 3,668,344.08
5. Step 5: Solve for x
   x = 3,668,344.08/2,216.55
6. Step 6: Final answer
   x = 1,654.98