Finding the Fourth Proportional to 1,308.83, 1,806.17 and 719.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,308.83 : 1,806.17 = 719.33 : x
2. Step 2: Convert to fraction form
   1,308.83/1,806.17 = 719.33/x
3. Step 3: Cross multiply
   1,308.83x = 1,806.17 × 719.33
4. Step 4: Simplify right side
   1,308.83x = 1,299,235.87
5. Step 5: Solve for x
   x = 1,299,235.87/1,308.83
6. Step 6: Final answer
   x = 992.67