Finding the Fourth Proportional to 2,076.72, 3,111.16 and 1,255.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.72 : 3,111.16 = 1,255.60 : x
2. Step 2: Convert to fraction form
   2,076.72/3,111.16 = 1,255.60/x
3. Step 3: Cross multiply
   2,076.72x = 3,111.16 × 1,255.60
4. Step 4: Simplify right side
   2,076.72x = 3,906,372.50
5. Step 5: Solve for x
   x = 3,906,372.50/2,076.72
6. Step 6: Final answer
   x = 1,881.03