Finding the Fourth Proportional to 2,522.05, 3,782.77 and 878.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,522.05 : 3,782.77 = 878.46 : x
2. Step 2: Convert to fraction form
   2,522.05/3,782.77 = 878.46/x
3. Step 3: Cross multiply
   2,522.05x = 3,782.77 × 878.46
4. Step 4: Simplify right side
   2,522.05x = 3,322,995.75
5. Step 5: Solve for x
   x = 3,322,995.75/2,522.05
6. Step 6: Final answer
   x = 1,317.58