Finding the Fourth Proportional to 1,767.59, 2,439.33 and 1,059.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,767.59 : 2,439.33 = 1,059.20 : x
2. Step 2: Convert to fraction form
   1,767.59/2,439.33 = 1,059.20/x
3. Step 3: Cross multiply
   1,767.59x = 2,439.33 × 1,059.20
4. Step 4: Simplify right side
   1,767.59x = 2,583,738.34
5. Step 5: Solve for x
   x = 2,583,738.34/1,767.59
6. Step 6: Final answer
   x = 1,461.73