Finding the Fourth Proportional to 1,196.39, 1,795.40 and 648.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.39 : 1,795.40 = 648.63 : x
2. Step 2: Convert to fraction form
   1,196.39/1,795.40 = 648.63/x
3. Step 3: Cross multiply
   1,196.39x = 1,795.40 × 648.63
4. Step 4: Simplify right side
   1,196.39x = 1,164,547.06
5. Step 5: Solve for x
   x = 1,164,547.06/1,196.39
6. Step 6: Final answer
   x = 973.39