Finding the Fourth Proportional to 2,624.43, 3,931.77 and 1,306.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,624.43 : 3,931.77 = 1,306.68 : x
2. Step 2: Convert to fraction form
   2,624.43/3,931.77 = 1,306.68/x
3. Step 3: Cross multiply
   2,624.43x = 3,931.77 × 1,306.68
4. Step 4: Simplify right side
   2,624.43x = 5,137,565.22
5. Step 5: Solve for x
   x = 5,137,565.22/2,624.43
6. Step 6: Final answer
   x = 1,957.59