Finding the Fourth Proportional to 2,223.10, 3,339.25 and 1,764.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.10 : 3,339.25 = 1,764.10 : x
2. Step 2: Convert to fraction form
   2,223.10/3,339.25 = 1,764.10/x
3. Step 3: Cross multiply
   2,223.10x = 3,339.25 × 1,764.10
4. Step 4: Simplify right side
   2,223.10x = 5,890,785.04
5. Step 5: Solve for x
   x = 5,890,785.04/2,223.10
6. Step 6: Final answer
   x = 2,649.81