Finding the Fourth Proportional to 1,196.30, 1,649.52 and 770.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.30 : 1,649.52 = 770.36 : x
2. Step 2: Convert to fraction form
   1,196.30/1,649.52 = 770.36/x
3. Step 3: Cross multiply
   1,196.30x = 1,649.52 × 770.36
4. Step 4: Simplify right side
   1,196.30x = 1,270,724.23
5. Step 5: Solve for x
   x = 1,270,724.23/1,196.30
6. Step 6: Final answer
   x = 1,062.21