Finding the Fourth Proportional to 1,601.51, 2,209.28 and 938.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,601.51 : 2,209.28 = 938.25 : x
2. Step 2: Convert to fraction form
   1,601.51/2,209.28 = 938.25/x
3. Step 3: Cross multiply
   1,601.51x = 2,209.28 × 938.25
4. Step 4: Simplify right side
   1,601.51x = 2,072,852.27
5. Step 5: Solve for x
   x = 2,072,852.27/1,601.51
6. Step 6: Final answer
   x = 1,294.32