Finding the Fourth Proportional to 1,060.83, 1,464.12 and 618.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,060.83 : 1,464.12 = 618.72 : x
2. Step 2: Convert to fraction form
   1,060.83/1,464.12 = 618.72/x
3. Step 3: Cross multiply
   1,060.83x = 1,464.12 × 618.72
4. Step 4: Simplify right side
   1,060.83x = 905,880.33
5. Step 5: Solve for x
   x = 905,880.33/1,060.83
6. Step 6: Final answer
   x = 853.94