Finding the Fourth Proportional to 1,772.69, 2,655.38 and 1,255.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,772.69 : 2,655.38 = 1,255.10 : x
2. Step 2: Convert to fraction form
   1,772.69/2,655.38 = 1,255.10/x
3. Step 3: Cross multiply
   1,772.69x = 2,655.38 × 1,255.10
4. Step 4: Simplify right side
   1,772.69x = 3,332,757.30
5. Step 5: Solve for x
   x = 3,332,757.30/1,772.69
6. Step 6: Final answer
   x = 1,880.06