Finding the Fourth Proportional to 1,308.66, 1,806.00 and 719.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,308.66 : 1,806.00 = 719.18 : x
2. Step 2: Convert to fraction form
   1,308.66/1,806.00 = 719.18/x
3. Step 3: Cross multiply
   1,308.66x = 1,806.00 × 719.18
4. Step 4: Simplify right side
   1,308.66x = 1,298,834.13
5. Step 5: Solve for x
   x = 1,298,834.13/1,308.66
6. Step 6: Final answer
   x = 992.49