Finding the Fourth Proportional to 2,426.17, 3,639.48 and 671.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,426.17 : 3,639.48 = 671.10 : x
2. Step 2: Convert to fraction form
   2,426.17/3,639.48 = 671.10/x
3. Step 3: Cross multiply
   2,426.17x = 3,639.48 × 671.10
4. Step 4: Simplify right side
   2,426.17x = 2,442,455.03
5. Step 5: Solve for x
   x = 2,442,455.03/2,426.17
6. Step 6: Final answer
   x = 1,006.71