Finding the Fourth Proportional to 1,067.78, 1,473.51 and 602.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,067.78 : 1,473.51 = 602.03 : x
2. Step 2: Convert to fraction form
   1,067.78/1,473.51 = 602.03/x
3. Step 3: Cross multiply
   1,067.78x = 1,473.51 × 602.03
4. Step 4: Simplify right side
   1,067.78x = 887,089.86
5. Step 5: Solve for x
   x = 887,089.86/1,067.78
6. Step 6: Final answer
   x = 830.78