Finding the Fourth Proportional to 1,196.40, 1,795.56 and 648.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.40 : 1,795.56 = 648.96 : x
2. Step 2: Convert to fraction form
   1,196.40/1,795.56 = 648.96/x
3. Step 3: Cross multiply
   1,196.40x = 1,795.56 × 648.96
4. Step 4: Simplify right side
   1,196.40x = 1,165,246.62
5. Step 5: Solve for x
   x = 1,165,246.62/1,196.40
6. Step 6: Final answer
   x = 973.96