Finding the Fourth Proportional to 1,767.96, 2,439.57 and 1,059.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,767.96 : 2,439.57 = 1,059.71 : x
2. Step 2: Convert to fraction form
   1,767.96/2,439.57 = 1,059.71/x
3. Step 3: Cross multiply
   1,767.96x = 2,439.57 × 1,059.71
4. Step 4: Simplify right side
   1,767.96x = 2,585,236.72
5. Step 5: Solve for x
   x = 2,585,236.72/1,767.96
6. Step 6: Final answer
   x = 1,462.28