Finding the Fourth Proportional to 2,613.54, 3,920.43 and 882.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.54 : 3,920.43 = 882.18 : x
2. Step 2: Convert to fraction form
   2,613.54/3,920.43 = 882.18/x
3. Step 3: Cross multiply
   2,613.54x = 3,920.43 × 882.18
4. Step 4: Simplify right side
   2,613.54x = 3,458,524.94
5. Step 5: Solve for x
   x = 3,458,524.94/2,613.54
6. Step 6: Final answer
   x = 1,323.31