Finding the Fourth Proportional to 3,152.88, 4,350.17 and 2,105.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,152.88 : 4,350.17 = 2,105.15 : x
2. Step 2: Convert to fraction form
   3,152.88/4,350.17 = 2,105.15/x
3. Step 3: Cross multiply
   3,152.88x = 4,350.17 × 2,105.15
4. Step 4: Simplify right side
   3,152.88x = 9,157,743.89
5. Step 5: Solve for x
   x = 9,157,743.89/3,152.88
6. Step 6: Final answer
   x = 2,904.56