Finding the Fourth Proportional to 2,105.34, 3,155.85 and 1,062.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.34 : 3,155.85 = 1,062.15 : x
2. Step 2: Convert to fraction form
   2,105.34/3,155.85 = 1,062.15/x
3. Step 3: Cross multiply
   2,105.34x = 3,155.85 × 1,062.15
4. Step 4: Simplify right side
   2,105.34x = 3,351,986.08
5. Step 5: Solve for x
   x = 3,351,986.08/2,105.34
6. Step 6: Final answer
   x = 1,592.14