Finding the Fourth Proportional to 1,768.05, 2,439.42 and 1,059.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,768.05 : 2,439.42 = 1,059.71 : x
2. Step 2: Convert to fraction form
   1,768.05/2,439.42 = 1,059.71/x
3. Step 3: Cross multiply
   1,768.05x = 2,439.42 × 1,059.71
4. Step 4: Simplify right side
   1,768.05x = 2,585,065.57
5. Step 5: Solve for x
   x = 2,585,065.57/1,768.05
6. Step 6: Final answer
   x = 1,462.10