Finding the Fourth Proportional to 1,647.69, 2,273.72 and 901.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,647.69 : 2,273.72 = 901.50 : x
2. Step 2: Convert to fraction form
   1,647.69/2,273.72 = 901.50/x
3. Step 3: Cross multiply
   1,647.69x = 2,273.72 × 901.50
4. Step 4: Simplify right side
   1,647.69x = 2,049,765.03
5. Step 5: Solve for x
   x = 2,049,765.03/1,647.69
6. Step 6: Final answer
   x = 1,244.03