Finding the Fourth Proportional to 2,522.75, 3,784.47 and 879.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,522.75 : 3,784.47 = 879.05 : x
2. Step 2: Convert to fraction form
   2,522.75/3,784.47 = 879.05/x
3. Step 3: Cross multiply
   2,522.75x = 3,784.47 × 879.05
4. Step 4: Simplify right side
   2,522.75x = 3,326,738.35
5. Step 5: Solve for x
   x = 3,326,738.35/2,522.75
6. Step 6: Final answer
   x = 1,318.70