Finding the Fourth Proportional to 1,066.86, 1,598.40 and 488.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.86 : 1,598.40 = 488.52 : x
2. Step 2: Convert to fraction form
   1,066.86/1,598.40 = 488.52/x
3. Step 3: Cross multiply
   1,066.86x = 1,598.40 × 488.52
4. Step 4: Simplify right side
   1,066.86x = 780,850.37
5. Step 5: Solve for x
   x = 780,850.37/1,066.86
6. Step 6: Final answer
   x = 731.91