Finding the Fourth Proportional to 2,568.32, 3,540.84 and 1,683.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,568.32 : 3,540.84 = 1,683.80 : x
2. Step 2: Convert to fraction form
   2,568.32/3,540.84 = 1,683.80/x
3. Step 3: Cross multiply
   2,568.32x = 3,540.84 × 1,683.80
4. Step 4: Simplify right side
   2,568.32x = 5,962,066.39
5. Step 5: Solve for x
   x = 5,962,066.39/2,568.32
6. Step 6: Final answer
   x = 2,321.39