Finding the Fourth Proportional to 2,105.41, 3,157.58 and 873.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.41 : 3,157.58 = 873.16 : x
2. Step 2: Convert to fraction form
   2,105.41/3,157.58 = 873.16/x
3. Step 3: Cross multiply
   2,105.41x = 3,157.58 × 873.16
4. Step 4: Simplify right side
   2,105.41x = 2,757,072.55
5. Step 5: Solve for x
   x = 2,757,072.55/2,105.41
6. Step 6: Final answer
   x = 1,309.52