Finding the Fourth Proportional to 1,066.06, 1,599.69 and 449.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.06 : 1,599.69 = 449.71 : x
2. Step 2: Convert to fraction form
   1,066.06/1,599.69 = 449.71/x
3. Step 3: Cross multiply
   1,066.06x = 1,599.69 × 449.71
4. Step 4: Simplify right side
   1,066.06x = 719,396.59
5. Step 5: Solve for x
   x = 719,396.59/1,066.06
6. Step 6: Final answer
   x = 674.82