Finding the Fourth Proportional to 2,613.87, 3,919.98 and 882.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.87 : 3,919.98 = 882.09 : x
2. Step 2: Convert to fraction form
   2,613.87/3,919.98 = 882.09/x
3. Step 3: Cross multiply
   2,613.87x = 3,919.98 × 882.09
4. Step 4: Simplify right side
   2,613.87x = 3,457,775.16
5. Step 5: Solve for x
   x = 3,457,775.16/2,613.87
6. Step 6: Final answer
   x = 1,322.86