Finding the Fourth Proportional to 2,772.56, 3,826.15 and 1,513.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,772.56 : 3,826.15 = 1,513.64 : x
2. Step 2: Convert to fraction form
   2,772.56/3,826.15 = 1,513.64/x
3. Step 3: Cross multiply
   2,772.56x = 3,826.15 × 1,513.64
4. Step 4: Simplify right side
   2,772.56x = 5,791,419.47
5. Step 5: Solve for x
   x = 5,791,419.47/2,772.56
6. Step 6: Final answer
   x = 2,088.83