Finding the Fourth Proportional to 2,830.41, 4,245.42 and 882.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,830.41 : 4,245.42 = 882.57 : x
2. Step 2: Convert to fraction form
   2,830.41/4,245.42 = 882.57/x
3. Step 3: Cross multiply
   2,830.41x = 4,245.42 × 882.57
4. Step 4: Simplify right side
   2,830.41x = 3,746,861.10
5. Step 5: Solve for x
   x = 3,746,861.10/2,830.41
6. Step 6: Final answer
   x = 1,323.79