Finding the Fourth Proportional to 2,523.69, 3,786.15 and 880.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,523.69 : 3,786.15 = 880.25 : x
2. Step 2: Convert to fraction form
   2,523.69/3,786.15 = 880.25/x
3. Step 3: Cross multiply
   2,523.69x = 3,786.15 × 880.25
4. Step 4: Simplify right side
   2,523.69x = 3,332,739.61
5. Step 5: Solve for x
   x = 3,332,739.61/2,523.69
6. Step 6: Final answer
   x = 1,320.58