Finding the Fourth Proportional to 2,587.10, 3,880.06 and 738.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587.10 : 3,880.06 = 738.17 : x
2. Step 2: Convert to fraction form
   2,587.10/3,880.06 = 738.17/x
3. Step 3: Cross multiply
   2,587.10x = 3,880.06 × 738.17
4. Step 4: Simplify right side
   2,587.10x = 2,864,143.89
5. Step 5: Solve for x
   x = 2,864,143.89/2,587.10
6. Step 6: Final answer
   x = 1,107.09