Finding the Fourth Proportional to 1,066.82, 1,473.52 and 771.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.82 : 1,473.52 = 771.62 : x
2. Step 2: Convert to fraction form
   1,066.82/1,473.52 = 771.62/x
3. Step 3: Cross multiply
   1,066.82x = 1,473.52 × 771.62
4. Step 4: Simplify right side
   1,066.82x = 1,136,997.50
5. Step 5: Solve for x
   x = 1,136,997.50/1,066.82
6. Step 6: Final answer
   x = 1,065.78