Finding the Fourth Proportional to 2,076.72, 3,116.16 and 1,255.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.72 : 3,116.16 = 1,255.56 : x
2. Step 2: Convert to fraction form
   2,076.72/3,116.16 = 1,255.56/x
3. Step 3: Cross multiply
   2,076.72x = 3,116.16 × 1,255.56
4. Step 4: Simplify right side
   2,076.72x = 3,912,525.85
5. Step 5: Solve for x
   x = 3,912,525.85/2,076.72
6. Step 6: Final answer
   x = 1,883.99