Finding the Fourth Proportional to 2,522.91, 3,784.27 and 879.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,522.91 : 3,784.27 = 879.45 : x
2. Step 2: Convert to fraction form
   2,522.91/3,784.27 = 879.45/x
3. Step 3: Cross multiply
   2,522.91x = 3,784.27 × 879.45
4. Step 4: Simplify right side
   2,522.91x = 3,328,076.25
5. Step 5: Solve for x
   x = 3,328,076.25/2,522.91
6. Step 6: Final answer
   x = 1,319.14