Finding the Fourth Proportional to 1,066.37, 1,599.57 and 449.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.37 : 1,599.57 = 449.69 : x
2. Step 2: Convert to fraction form
   1,066.37/1,599.57 = 449.69/x
3. Step 3: Cross multiply
   1,066.37x = 1,599.57 × 449.69
4. Step 4: Simplify right side
   1,066.37x = 719,300.39
5. Step 5: Solve for x
   x = 719,300.39/1,066.37
6. Step 6: Final answer
   x = 674.53