Finding the Fourth Proportional to 1,576.34, 2,175.39 and 868.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,576.34 : 2,175.39 = 868.10 : x
2. Step 2: Convert to fraction form
   1,576.34/2,175.39 = 868.10/x
3. Step 3: Cross multiply
   1,576.34x = 2,175.39 × 868.10
4. Step 4: Simplify right side
   1,576.34x = 1,888,456.06
5. Step 5: Solve for x
   x = 1,888,456.06/1,576.34
6. Step 6: Final answer
   x = 1,198.00