Finding the Fourth Proportional to 2,772.16, 3,825.55 and 1,513.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,772.16 : 3,825.55 = 1,513.22 : x
2. Step 2: Convert to fraction form
   2,772.16/3,825.55 = 1,513.22/x
3. Step 3: Cross multiply
   2,772.16x = 3,825.55 × 1,513.22
4. Step 4: Simplify right side
   2,772.16x = 5,788,901.71
5. Step 5: Solve for x
   x = 5,788,901.71/2,772.16
6. Step 6: Final answer
   x = 2,088.23