Finding the Fourth Proportional to 2,107.15, 3,158.82 and 1,065.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,107.15 : 3,158.82 = 1,065.69 : x
2. Step 2: Convert to fraction form
   2,107.15/3,158.82 = 1,065.69/x
3. Step 3: Cross multiply
   2,107.15x = 3,158.82 × 1,065.69
4. Step 4: Simplify right side
   2,107.15x = 3,366,322.89
5. Step 5: Solve for x
   x = 3,366,322.89/2,107.15
6. Step 6: Final answer
   x = 1,597.57