Finding the Fourth Proportional to 2,223.37, 3,068.17 and 1,228.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.37 : 3,068.17 = 1,228.69 : x
2. Step 2: Convert to fraction form
   2,223.37/3,068.17 = 1,228.69/x
3. Step 3: Cross multiply
   2,223.37x = 3,068.17 × 1,228.69
4. Step 4: Simplify right side
   2,223.37x = 3,769,829.80
5. Step 5: Solve for x
   x = 3,769,829.80/2,223.37
6. Step 6: Final answer
   x = 1,695.55