Finding the Fourth Proportional to 1,066.53, 1,598.58 and 488.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.53 : 1,598.58 = 488.19 : x
2. Step 2: Convert to fraction form
   1,066.53/1,598.58 = 488.19/x
3. Step 3: Cross multiply
   1,066.53x = 1,598.58 × 488.19
4. Step 4: Simplify right side
   1,066.53x = 780,404.33
5. Step 5: Solve for x
   x = 780,404.33/1,066.53
6. Step 6: Final answer
   x = 731.72