Finding the Fourth Proportional to 2,101.23, 3,153.06 and 868.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,101.23 : 3,153.06 = 868.41 : x
2. Step 2: Convert to fraction form
   2,101.23/3,153.06 = 868.41/x
3. Step 3: Cross multiply
   2,101.23x = 3,153.06 × 868.41
4. Step 4: Simplify right side
   2,101.23x = 2,738,148.83
5. Step 5: Solve for x
   x = 2,738,148.83/2,101.23
6. Step 6: Final answer
   x = 1,303.12