Finding the Fourth Proportional to 2,613.81, 3,920.07 and 882.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.81 : 3,920.07 = 882.42 : x
2. Step 2: Convert to fraction form
   2,613.81/3,920.07 = 882.42/x
3. Step 3: Cross multiply
   2,613.81x = 3,920.07 × 882.42
4. Step 4: Simplify right side
   2,613.81x = 3,459,148.17
5. Step 5: Solve for x
   x = 3,459,148.17/2,613.81
6. Step 6: Final answer
   x = 1,323.41