Finding the Fourth Proportional to 2,513.16, 3,761.82 and 1,728.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,513.16 : 3,761.82 = 1,728.56 : x
2. Step 2: Convert to fraction form
   2,513.16/3,761.82 = 1,728.56/x
3. Step 3: Cross multiply
   2,513.16x = 3,761.82 × 1,728.56
4. Step 4: Simplify right side
   2,513.16x = 6,502,512.77
5. Step 5: Solve for x
   x = 6,502,512.77/2,513.16
6. Step 6: Final answer
   x = 2,587.39