Finding the Fourth Proportional to 2,223.57, 3,068.45 and 1,279.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.57 : 3,068.45 = 1,279.51 : x
2. Step 2: Convert to fraction form
   2,223.57/3,068.45 = 1,279.51/x
3. Step 3: Cross multiply
   2,223.57x = 3,068.45 × 1,279.51
4. Step 4: Simplify right side
   2,223.57x = 3,926,103.19
5. Step 5: Solve for x
   x = 3,926,103.19/2,223.57
6. Step 6: Final answer
   x = 1,765.68