Finding the Fourth Proportional to 2,223.69, 3,068.70 and 1,228.97

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.69 : 3,068.70 = 1,228.97 : x
2. Step 2: Convert to fraction form
   2,223.69/3,068.70 = 1,228.97/x
3. Step 3: Cross multiply
   2,223.69x = 3,068.70 × 1,228.97
4. Step 4: Simplify right side
   2,223.69x = 3,771,340.90
5. Step 5: Solve for x
   x = 3,771,340.90/2,223.69
6. Step 6: Final answer
   x = 1,695.98