Finding the Fourth Proportional to 1,308.54, 1,805.76 and 719.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,308.54 : 1,805.76 = 719.04 : x
2. Step 2: Convert to fraction form
   1,308.54/1,805.76 = 719.04/x
3. Step 3: Cross multiply
   1,308.54x = 1,805.76 × 719.04
4. Step 4: Simplify right side
   1,308.54x = 1,298,413.67
5. Step 5: Solve for x
   x = 1,298,413.67/1,308.54
6. Step 6: Final answer
   x = 992.26