Finding the Fourth Proportional to 1,196.10, 1,794.42 and 618.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.10 : 1,794.42 = 618.84 : x
2. Step 2: Convert to fraction form
   1,196.10/1,794.42 = 618.84/x
3. Step 3: Cross multiply
   1,196.10x = 1,794.42 × 618.84
4. Step 4: Simplify right side
   1,196.10x = 1,110,458.87
5. Step 5: Solve for x
   x = 1,110,458.87/1,196.10
6. Step 6: Final answer
   x = 928.40