Finding the Fourth Proportional to 1,066.82, 1,472.33 and 767.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.82 : 1,472.33 = 767.99 : x
2. Step 2: Convert to fraction form
   1,066.82/1,472.33 = 767.99/x
3. Step 3: Cross multiply
   1,066.82x = 1,472.33 × 767.99
4. Step 4: Simplify right side
   1,066.82x = 1,130,740.32
5. Step 5: Solve for x
   x = 1,130,740.32/1,066.82
6. Step 6: Final answer
   x = 1,059.92