Finding the Fourth Proportional to 1,196.06, 1,795.20 and 648.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.06 : 1,795.20 = 648.68 : x
2. Step 2: Convert to fraction form
   1,196.06/1,795.20 = 648.68/x
3. Step 3: Cross multiply
   1,196.06x = 1,795.20 × 648.68
4. Step 4: Simplify right side
   1,196.06x = 1,164,501.36
5. Step 5: Solve for x
   x = 1,164,501.36/1,196.06
6. Step 6: Final answer
   x = 973.62