Finding the Fourth Proportional to 2,522.71, 3,784.48 and 879.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,522.71 : 3,784.48 = 879.74 : x
2. Step 2: Convert to fraction form
   2,522.71/3,784.48 = 879.74/x
3. Step 3: Cross multiply
   2,522.71x = 3,784.48 × 879.74
4. Step 4: Simplify right side
   2,522.71x = 3,329,337.31
5. Step 5: Solve for x
   x = 3,329,337.31/2,522.71
6. Step 6: Final answer
   x = 1,319.75