Finding the Fourth Proportional to 2,819.22, 4,228.98 and 1,259.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,819.22 : 4,228.98 = 1,259.34 : x
2. Step 2: Convert to fraction form
   2,819.22/4,228.98 = 1,259.34/x
3. Step 3: Cross multiply
   2,819.22x = 4,228.98 × 1,259.34
4. Step 4: Simplify right side
   2,819.22x = 5,325,723.67
5. Step 5: Solve for x
   x = 5,325,723.67/2,819.22
6. Step 6: Final answer
   x = 1,889.08