Finding the Fourth Proportional to 2,012.16, 2,775.98 and 1,255.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.16 : 2,775.98 = 1,255.50 : x
2. Step 2: Convert to fraction form
   2,012.16/2,775.98 = 1,255.50/x
3. Step 3: Cross multiply
   2,012.16x = 2,775.98 × 1,255.50
4. Step 4: Simplify right side
   2,012.16x = 3,485,226.20
5. Step 5: Solve for x
   x = 3,485,226.20/2,012.16
6. Step 6: Final answer
   x = 1,732.08