Finding the Fourth Proportional to 1,060.42, 1,463.30 and 618.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,060.42 : 1,463.30 = 618.27 : x
2. Step 2: Convert to fraction form
   1,060.42/1,463.30 = 618.27/x
3. Step 3: Cross multiply
   1,060.42x = 1,463.30 × 618.27
4. Step 4: Simplify right side
   1,060.42x = 904,714.49
5. Step 5: Solve for x
   x = 904,714.49/1,060.42
6. Step 6: Final answer
   x = 853.17