Finding the Fourth Proportional to 2,788.29, 4,182.84 and 1,326.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,788.29 : 4,182.84 = 1,326.24 : x
2. Step 2: Convert to fraction form
   2,788.29/4,182.84 = 1,326.24/x
3. Step 3: Cross multiply
   2,788.29x = 4,182.84 × 1,326.24
4. Step 4: Simplify right side
   2,788.29x = 5,547,449.72
5. Step 5: Solve for x
   x = 5,547,449.72/2,788.29
6. Step 6: Final answer
   x = 1,989.55