Finding the Fourth Proportional to 1,066.50, 1,597.59 and 517.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.50 : 1,597.59 = 517.05 : x
2. Step 2: Convert to fraction form
   1,066.50/1,597.59 = 517.05/x
3. Step 3: Cross multiply
   1,066.50x = 1,597.59 × 517.05
4. Step 4: Simplify right side
   1,066.50x = 826,033.91
5. Step 5: Solve for x
   x = 826,033.91/1,066.50
6. Step 6: Final answer
   x = 774.53