Finding the Fourth Proportional to 2,060.42, 2,843.39 and 1,128.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,060.42 : 2,843.39 = 1,128.90 : x
2. Step 2: Convert to fraction form
   2,060.42/2,843.39 = 1,128.90/x
3. Step 3: Cross multiply
   2,060.42x = 2,843.39 × 1,128.90
4. Step 4: Simplify right side
   2,060.42x = 3,209,902.97
5. Step 5: Solve for x
   x = 3,209,902.97/2,060.42
6. Step 6: Final answer
   x = 1,557.89