Finding the Fourth Proportional to 3,508.82, 5,258.67 and 1,426.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,508.82 : 5,258.67 = 1,426.40 : x
2. Step 2: Convert to fraction form
   3,508.82/5,258.67 = 1,426.40/x
3. Step 3: Cross multiply
   3,508.82x = 5,258.67 × 1,426.40
4. Step 4: Simplify right side
   3,508.82x = 7,500,966.89
5. Step 5: Solve for x
   x = 7,500,966.89/3,508.82
6. Step 6: Final answer
   x = 2,137.75