Finding the Fourth Proportional to 1,647.37, 2,273.42 and 1,009.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,647.37 : 2,273.42 = 1,009.43 : x
2. Step 2: Convert to fraction form
   1,647.37/2,273.42 = 1,009.43/x
3. Step 3: Cross multiply
   1,647.37x = 2,273.42 × 1,009.43
4. Step 4: Simplify right side
   1,647.37x = 2,294,849.51
5. Step 5: Solve for x
   x = 2,294,849.51/1,647.37
6. Step 6: Final answer
   x = 1,393.04