Finding the Fourth Proportional to 1,609.59, 2,221.28 and 901.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,609.59 : 2,221.28 = 901.46 : x
2. Step 2: Convert to fraction form
   1,609.59/2,221.28 = 901.46/x
3. Step 3: Cross multiply
   1,609.59x = 2,221.28 × 901.46
4. Step 4: Simplify right side
   1,609.59x = 2,002,399.50
5. Step 5: Solve for x
   x = 2,002,399.50/1,609.59
6. Step 6: Final answer
   x = 1,244.04