Finding the Fourth Proportional to 1,647.55, 2,273.78 and 901.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,647.55 : 2,273.78 = 901.62 : x
2. Step 2: Convert to fraction form
   1,647.55/2,273.78 = 901.62/x
3. Step 3: Cross multiply
   1,647.55x = 2,273.78 × 901.62
4. Step 4: Simplify right side
   1,647.55x = 2,050,085.52
5. Step 5: Solve for x
   x = 2,050,085.52/1,647.55
6. Step 6: Final answer
   x = 1,244.32