Finding the Fourth Proportional to 1,196.02, 1,649.73 and 1,009.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.02 : 1,649.73 = 1,009.72 : x
2. Step 2: Convert to fraction form
   1,196.02/1,649.73 = 1,009.72/x
3. Step 3: Cross multiply
   1,196.02x = 1,649.73 × 1,009.72
4. Step 4: Simplify right side
   1,196.02x = 1,665,765.38
5. Step 5: Solve for x
   x = 1,665,765.38/1,196.02
6. Step 6: Final answer
   x = 1,392.76