Finding the Fourth Proportional to 2,231.60, 3,078.62 and 1,568.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,231.60 : 3,078.62 = 1,568.89 : x
2. Step 2: Convert to fraction form
   2,231.60/3,078.62 = 1,568.89/x
3. Step 3: Cross multiply
   2,231.60x = 3,078.62 × 1,568.89
4. Step 4: Simplify right side
   2,231.60x = 4,829,992.89
5. Step 5: Solve for x
   x = 4,829,992.89/2,231.60
6. Step 6: Final answer
   x = 2,164.36