Finding the Fourth Proportional to 1,491.90, 2,222.07 and 1,413.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,491.90 : 2,222.07 = 1,413.83 : x
2. Step 2: Convert to fraction form
   1,491.90/2,222.07 = 1,413.83/x
3. Step 3: Cross multiply
   1,491.90x = 2,222.07 × 1,413.83
4. Step 4: Simplify right side
   1,491.90x = 3,141,618.12
5. Step 5: Solve for x
   x = 3,141,618.12/1,491.90
6. Step 6: Final answer
   x = 2,105.78