Finding the Fourth Proportional to 1,828.50, 2,743.56 and 855.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,828.50 : 2,743.56 = 855.42 : x
2. Step 2: Convert to fraction form
   1,828.50/2,743.56 = 855.42/x
3. Step 3: Cross multiply
   1,828.50x = 2,743.56 × 855.42
4. Step 4: Simplify right side
   1,828.50x = 2,346,896.10
5. Step 5: Solve for x
   x = 2,346,896.10/1,828.50
6. Step 6: Final answer
   x = 1,283.51