Finding the Fourth Proportional to 2,557.58, 3,833.33 and 995.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,557.58 : 3,833.33 = 995.72 : x
2. Step 2: Convert to fraction form
   2,557.58/3,833.33 = 995.72/x
3. Step 3: Cross multiply
   2,557.58x = 3,833.33 × 995.72
4. Step 4: Simplify right side
   2,557.58x = 3,816,899.20
5. Step 5: Solve for x
   x = 3,816,899.20/2,557.58
6. Step 6: Final answer
   x = 1,492.39