Finding the Fourth Proportional to 2,223.80, 3,068.15 and 1,279.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.80 : 3,068.15 = 1,279.24 : x
2. Step 2: Convert to fraction form
   2,223.80/3,068.15 = 1,279.24/x
3. Step 3: Cross multiply
   2,223.80x = 3,068.15 × 1,279.24
4. Step 4: Simplify right side
   2,223.80x = 3,924,900.21
5. Step 5: Solve for x
   x = 3,924,900.21/2,223.80
6. Step 6: Final answer
   x = 1,764.95