Finding the Fourth Proportional to 1,647.47, 2,273.56 and 901.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,647.47 : 2,273.56 = 901.42 : x
2. Step 2: Convert to fraction form
   1,647.47/2,273.56 = 901.42/x
3. Step 3: Cross multiply
   1,647.47x = 2,273.56 × 901.42
4. Step 4: Simplify right side
   1,647.47x = 2,049,421.09
5. Step 5: Solve for x
   x = 2,049,421.09/1,647.47
6. Step 6: Final answer
   x = 1,243.98