Finding the Fourth Proportional to 2,105.52, 3,157.08 and 718.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.52 : 3,157.08 = 718.16 : x
2. Step 2: Convert to fraction form
   2,105.52/3,157.08 = 718.16/x
3. Step 3: Cross multiply
   2,105.52x = 3,157.08 × 718.16
4. Step 4: Simplify right side
   2,105.52x = 2,267,288.57
5. Step 5: Solve for x
   x = 2,267,288.57/2,105.52
6. Step 6: Final answer
   x = 1,076.83