Finding the Fourth Proportional to 2,522.08, 3,781.09 and 878.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,522.08 : 3,781.09 = 878.59 : x
2. Step 2: Convert to fraction form
   2,522.08/3,781.09 = 878.59/x
3. Step 3: Cross multiply
   2,522.08x = 3,781.09 × 878.59
4. Step 4: Simplify right side
   2,522.08x = 3,322,004.56
5. Step 5: Solve for x
   x = 3,322,004.56/2,522.08
6. Step 6: Final answer
   x = 1,317.17