Finding the Fourth Proportional to 2,310.74, 3,189.69 and 1,568.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,310.74 : 3,189.69 = 1,568.54 : x
2. Step 2: Convert to fraction form
   2,310.74/3,189.69 = 1,568.54/x
3. Step 3: Cross multiply
   2,310.74x = 3,189.69 × 1,568.54
4. Step 4: Simplify right side
   2,310.74x = 5,003,156.35
5. Step 5: Solve for x
   x = 5,003,156.35/2,310.74
6. Step 6: Final answer
   x = 2,165.17