Finding the Fourth Proportional to 3,105.10, 4,654.40 and 1,255.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,105.10 : 4,654.40 = 1,255.46 : x
2. Step 2: Convert to fraction form
   3,105.10/4,654.40 = 1,255.46/x
3. Step 3: Cross multiply
   3,105.10x = 4,654.40 × 1,255.46
4. Step 4: Simplify right side
   3,105.10x = 5,843,413.02
5. Step 5: Solve for x
   x = 5,843,413.02/3,105.10
6. Step 6: Final answer
   x = 1,881.88