Finding the Fourth Proportional to 1,195.98, 1,792.89 and 618.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,195.98 : 1,792.89 = 618.30 : x
2. Step 2: Convert to fraction form
   1,195.98/1,792.89 = 618.30/x
3. Step 3: Cross multiply
   1,195.98x = 1,792.89 × 618.30
4. Step 4: Simplify right side
   1,195.98x = 1,108,543.89
5. Step 5: Solve for x
   x = 1,108,543.89/1,195.98
6. Step 6: Final answer
   x = 926.89