Finding the Fourth Proportional to 2,830.20, 4,245.42 and 882.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,830.20 : 4,245.42 = 882.42 : x
2. Step 2: Convert to fraction form
   2,830.20/4,245.42 = 882.42/x
3. Step 3: Cross multiply
   2,830.20x = 4,245.42 × 882.42
4. Step 4: Simplify right side
   2,830.20x = 3,746,243.52
5. Step 5: Solve for x
   x = 3,746,243.52/2,830.20
6. Step 6: Final answer
   x = 1,323.67