Finding the Fourth Proportional to 2,888.57, 4,333.41 and 1,039.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,888.57 : 4,333.41 = 1,039.61 : x
2. Step 2: Convert to fraction form
   2,888.57/4,333.41 = 1,039.61/x
3. Step 3: Cross multiply
   2,888.57x = 4,333.41 × 1,039.61
4. Step 4: Simplify right side
   2,888.57x = 4,505,067.20
5. Step 5: Solve for x
   x = 4,505,067.20/2,888.57
6. Step 6: Final answer
   x = 1,559.62