Finding the Fourth Proportional to 1,413.08, 1,951.80 and 1,019.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,413.08 : 1,951.80 = 1,019.42 : x
2. Step 2: Convert to fraction form
   1,413.08/1,951.80 = 1,019.42/x
3. Step 3: Cross multiply
   1,413.08x = 1,951.80 × 1,019.42
4. Step 4: Simplify right side
   1,413.08x = 1,989,703.96
5. Step 5: Solve for x
   x = 1,989,703.96/1,413.08
6. Step 6: Final answer
   x = 1,408.06