Finding the Fourth Proportional to 1,060.42, 1,463.05 and 618.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,060.42 : 1,463.05 = 618.03 : x
2. Step 2: Convert to fraction form
   1,060.42/1,463.05 = 618.03/x
3. Step 3: Cross multiply
   1,060.42x = 1,463.05 × 618.03
4. Step 4: Simplify right side
   1,060.42x = 904,208.79
5. Step 5: Solve for x
   x = 904,208.79/1,060.42
6. Step 6: Final answer
   x = 852.69