Finding the Fourth Proportional to 1,066.03, 1,598.43 and 416.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.03 : 1,598.43 = 416.02 : x
2. Step 2: Convert to fraction form
   1,066.03/1,598.43 = 416.02/x
3. Step 3: Cross multiply
   1,066.03x = 1,598.43 × 416.02
4. Step 4: Simplify right side
   1,066.03x = 664,978.85
5. Step 5: Solve for x
   x = 664,978.85/1,066.03
6. Step 6: Final answer
   x = 623.79