Finding the Fourth Proportional to 2,059.62, 2,842.30 and 1,128.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,059.62 : 2,842.30 = 1,128.12 : x
2. Step 2: Convert to fraction form
   2,059.62/2,842.30 = 1,128.12/x
3. Step 3: Cross multiply
   2,059.62x = 2,842.30 × 1,128.12
4. Step 4: Simplify right side
   2,059.62x = 3,206,455.48
5. Step 5: Solve for x
   x = 3,206,455.48/2,059.62
6. Step 6: Final answer
   x = 1,556.82