Finding the Fourth Proportional to 2,819.09, 4,229.55 and 1,175.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,819.09 : 4,229.55 = 1,175.80 : x
2. Step 2: Convert to fraction form
   2,819.09/4,229.55 = 1,175.80/x
3. Step 3: Cross multiply
   2,819.09x = 4,229.55 × 1,175.80
4. Step 4: Simplify right side
   2,819.09x = 4,973,104.89
5. Step 5: Solve for x
   x = 4,973,104.89/2,819.09
6. Step 6: Final answer
   x = 1,764.08