Finding the Fourth Proportional to 2,223.59, 3,068.46 and 1,339.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.59 : 3,068.46 = 1,339.20 : x
2. Step 2: Convert to fraction form
   2,223.59/3,068.46 = 1,339.20/x
3. Step 3: Cross multiply
   2,223.59x = 3,068.46 × 1,339.20
4. Step 4: Simplify right side
   2,223.59x = 4,109,281.63
5. Step 5: Solve for x
   x = 4,109,281.63/2,223.59
6. Step 6: Final answer
   x = 1,848.04