Finding the Fourth Proportional to 2,735.30, 4,105.59 and 2,587.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,735.30 : 4,105.59 = 2,587.30 : x
2. Step 2: Convert to fraction form
   2,735.30/4,105.59 = 2,587.30/x
3. Step 3: Cross multiply
   2,735.30x = 4,105.59 × 2,587.30
4. Step 4: Simplify right side
   2,735.30x = 10,622,393.01
5. Step 5: Solve for x
   x = 10,622,393.01/2,735.30
6. Step 6: Final answer
   x = 3,883.45