Finding the Fourth Proportional to 1,601.46, 2,209.89 and 938.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,601.46 : 2,209.89 = 938.22 : x
2. Step 2: Convert to fraction form
   1,601.46/2,209.89 = 938.22/x
3. Step 3: Cross multiply
   1,601.46x = 2,209.89 × 938.22
4. Step 4: Simplify right side
   1,601.46x = 2,073,363.00
5. Step 5: Solve for x
   x = 2,073,363.00/1,601.46
6. Step 6: Final answer
   x = 1,294.67