Finding the Fourth Proportional to 1,505.88, 2,078.16 and 842.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,505.88 : 2,078.16 = 842.73 : x
2. Step 2: Convert to fraction form
   1,505.88/2,078.16 = 842.73/x
3. Step 3: Cross multiply
   1,505.88x = 2,078.16 × 842.73
4. Step 4: Simplify right side
   1,505.88x = 1,751,327.78
5. Step 5: Solve for x
   x = 1,751,327.78/1,505.88
6. Step 6: Final answer
   x = 1,162.99