Finding the Fourth Proportional to 1,196.51, 1,791.50 and 618.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.51 : 1,791.50 = 618.17 : x
2. Step 2: Convert to fraction form
   1,196.51/1,791.50 = 618.17/x
3. Step 3: Cross multiply
   1,196.51x = 1,791.50 × 618.17
4. Step 4: Simplify right side
   1,196.51x = 1,107,439.51
5. Step 5: Solve for x
   x = 1,107,439.51/1,196.51
6. Step 6: Final answer
   x = 925.56