Finding the Fourth Proportional to 2,060.28, 2,843.10 and 1,128.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,060.28 : 2,843.10 = 1,128.72 : x
2. Step 2: Convert to fraction form
   2,060.28/2,843.10 = 1,128.72/x
3. Step 3: Cross multiply
   2,060.28x = 2,843.10 × 1,128.72
4. Step 4: Simplify right side
   2,060.28x = 3,209,063.83
5. Step 5: Solve for x
   x = 3,209,063.83/2,060.28
6. Step 6: Final answer
   x = 1,557.59