Finding the Fourth Proportional to 2,772.69, 3,826.18 and 1,513.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,772.69 : 3,826.18 = 1,513.80 : x
2. Step 2: Convert to fraction form
   2,772.69/3,826.18 = 1,513.80/x
3. Step 3: Cross multiply
   2,772.69x = 3,826.18 × 1,513.80
4. Step 4: Simplify right side
   2,772.69x = 5,792,044.58
5. Step 5: Solve for x
   x = 5,792,044.58/2,772.69
6. Step 6: Final answer
   x = 2,088.97