Finding the Fourth Proportional to 2,223.35, 3,068.17 and 1,228.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.35 : 3,068.17 = 1,228.63 : x
2. Step 2: Convert to fraction form
   2,223.35/3,068.17 = 1,228.63/x
3. Step 3: Cross multiply
   2,223.35x = 3,068.17 × 1,228.63
4. Step 4: Simplify right side
   2,223.35x = 3,769,645.71
5. Step 5: Solve for x
   x = 3,769,645.71/2,223.35
6. Step 6: Final answer
   x = 1,695.48