Finding the Fourth Proportional to 1,413.08, 1,948.00 and 992.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,413.08 : 1,948.00 = 992.15 : x
2. Step 2: Convert to fraction form
   1,413.08/1,948.00 = 992.15/x
3. Step 3: Cross multiply
   1,413.08x = 1,948.00 × 992.15
4. Step 4: Simplify right side
   1,413.08x = 1,932,693.50
5. Step 5: Solve for x
   x = 1,932,693.50/1,413.08
6. Step 6: Final answer
   x = 1,367.72