Finding the Fourth Proportional to 1,066.20, 1,597.69 and 718.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.20 : 1,597.69 = 718.27 : x
2. Step 2: Convert to fraction form
   1,066.20/1,597.69 = 718.27/x
3. Step 3: Cross multiply
   1,066.20x = 1,597.69 × 718.27
4. Step 4: Simplify right side
   1,066.20x = 1,147,569.70
5. Step 5: Solve for x
   x = 1,147,569.70/1,066.20
6. Step 6: Final answer
   x = 1,076.32