Finding the Fourth Proportional to 2,522.41, 3,782.42 and 878.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,522.41 : 3,782.42 = 878.76 : x
2. Step 2: Convert to fraction form
   2,522.41/3,782.42 = 878.76/x
3. Step 3: Cross multiply
   2,522.41x = 3,782.42 × 878.76
4. Step 4: Simplify right side
   2,522.41x = 3,323,816.09
5. Step 5: Solve for x
   x = 3,323,816.09/2,522.41
6. Step 6: Final answer
   x = 1,317.71