Finding the Fourth Proportional to 1,306.09, 1,802.42 and 716.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,306.09 : 1,802.42 = 716.62 : x
2. Step 2: Convert to fraction form
   1,306.09/1,802.42 = 716.62/x
3. Step 3: Cross multiply
   1,306.09x = 1,802.42 × 716.62
4. Step 4: Simplify right side
   1,306.09x = 1,291,650.22
5. Step 5: Solve for x
   x = 1,291,650.22/1,306.09
6. Step 6: Final answer
   x = 988.94