Finding the Fourth Proportional to 2,612.29, 3,918.42 and 882.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.29 : 3,918.42 = 882.13 : x
2. Step 2: Convert to fraction form
   2,612.29/3,918.42 = 882.13/x
3. Step 3: Cross multiply
   2,612.29x = 3,918.42 × 882.13
4. Step 4: Simplify right side
   2,612.29x = 3,456,555.83
5. Step 5: Solve for x
   x = 3,456,555.83/2,612.29
6. Step 6: Final answer
   x = 1,323.19