Finding the Fourth Proportional to 1,195.89, 1,794.54 and 648.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,195.89 : 1,794.54 = 648.06 : x
2. Step 2: Convert to fraction form
   1,195.89/1,794.54 = 648.06/x
3. Step 3: Cross multiply
   1,195.89x = 1,794.54 × 648.06
4. Step 4: Simplify right side
   1,195.89x = 1,162,969.59
5. Step 5: Solve for x
   x = 1,162,969.59/1,195.89
6. Step 6: Final answer
   x = 972.47