Finding the Fourth Proportional to 1,066.91, 1,600.56 and 336.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.91 : 1,600.56 = 336.49 : x
2. Step 2: Convert to fraction form
   1,066.91/1,600.56 = 336.49/x
3. Step 3: Cross multiply
   1,066.91x = 1,600.56 × 336.49
4. Step 4: Simplify right side
   1,066.91x = 538,568.43
5. Step 5: Solve for x
   x = 538,568.43/1,066.91
6. Step 6: Final answer
   x = 504.80