Finding the Fourth Proportional to 1,342.89, 1,853.37 and 845.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,342.89 : 1,853.37 = 845.73 : x
2. Step 2: Convert to fraction form
   1,342.89/1,853.37 = 845.73/x
3. Step 3: Cross multiply
   1,342.89x = 1,853.37 × 845.73
4. Step 4: Simplify right side
   1,342.89x = 1,567,450.61
5. Step 5: Solve for x
   x = 1,567,450.61/1,342.89
6. Step 6: Final answer
   x = 1,167.22