Finding the Fourth Proportional to 2,628.50, 3,626.60 and 1,508.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,628.50 : 3,626.60 = 1,508.78 : x
2. Step 2: Convert to fraction form
   2,628.50/3,626.60 = 1,508.78/x
3. Step 3: Cross multiply
   2,628.50x = 3,626.60 × 1,508.78
4. Step 4: Simplify right side
   2,628.50x = 5,471,715.87
5. Step 5: Solve for x
   x = 5,471,715.87/2,628.50
6. Step 6: Final answer
   x = 2,081.69