Finding the Fourth Proportional to 2,223.33, 3,068.16 and 1,228.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.33 : 3,068.16 = 1,228.61 : x
2. Step 2: Convert to fraction form
   2,223.33/3,068.16 = 1,228.61/x
3. Step 3: Cross multiply
   2,223.33x = 3,068.16 × 1,228.61
4. Step 4: Simplify right side
   2,223.33x = 3,769,572.06
5. Step 5: Solve for x
   x = 3,769,572.06/2,223.33
6. Step 6: Final answer
   x = 1,695.46