Finding the Fourth Proportional to 2,522.24, 3,783.99 and 878.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,522.24 : 3,783.99 = 878.81 : x
2. Step 2: Convert to fraction form
   2,522.24/3,783.99 = 878.81/x
3. Step 3: Cross multiply
   2,522.24x = 3,783.99 × 878.81
4. Step 4: Simplify right side
   2,522.24x = 3,325,389.33
5. Step 5: Solve for x
   x = 3,325,389.33/2,522.24
6. Step 6: Final answer
   x = 1,318.43