Finding the Fourth Proportional to 2,223.48, 3,068.41 and 1,228.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.48 : 3,068.41 = 1,228.75 : x
2. Step 2: Convert to fraction form
   2,223.48/3,068.41 = 1,228.75/x
3. Step 3: Cross multiply
   2,223.48x = 3,068.41 × 1,228.75
4. Step 4: Simplify right side
   2,223.48x = 3,770,314.15
5. Step 5: Solve for x
   x = 3,770,314.15/2,223.48
6. Step 6: Final answer
   x = 1,695.68