Finding the Fourth Proportional to 2,522.04, 3,782.12 and 878.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,522.04 : 3,782.12 = 878.28 : x
2. Step 2: Convert to fraction form
   2,522.04/3,782.12 = 878.28/x
3. Step 3: Cross multiply
   2,522.04x = 3,782.12 × 878.28
4. Step 4: Simplify right side
   2,522.04x = 3,321,755.96
5. Step 5: Solve for x
   x = 3,321,755.96/2,522.04
6. Step 6: Final answer
   x = 1,317.09