Finding the Fourth Proportional to 2,026.88, 2,797.12 and 1,142.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,026.88 : 2,797.12 = 1,142.60 : x
2. Step 2: Convert to fraction form
   2,026.88/2,797.12 = 1,142.60/x
3. Step 3: Cross multiply
   2,026.88x = 2,797.12 × 1,142.60
4. Step 4: Simplify right side
   2,026.88x = 3,195,989.31
5. Step 5: Solve for x
   x = 3,195,989.31/2,026.88
6. Step 6: Final answer
   x = 1,576.80