Finding the Fourth Proportional to 1,413.83, 2,118.50 and 1,148.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,413.83 : 2,118.50 = 1,148.99 : x
2. Step 2: Convert to fraction form
   1,413.83/2,118.50 = 1,148.99/x
3. Step 3: Cross multiply
   1,413.83x = 2,118.50 × 1,148.99
4. Step 4: Simplify right side
   1,413.83x = 2,434,127.59
5. Step 5: Solve for x
   x = 2,434,127.59/1,413.83
6. Step 6: Final answer
   x = 1,721.66