Finding the Fourth Proportional to 1,575.38, 2,173.25 and 945.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,575.38 : 2,173.25 = 945.60 : x
2. Step 2: Convert to fraction form
   1,575.38/2,173.25 = 945.60/x
3. Step 3: Cross multiply
   1,575.38x = 2,173.25 × 945.60
4. Step 4: Simplify right side
   1,575.38x = 2,055,020.47
5. Step 5: Solve for x
   x = 2,055,020.47/1,575.38
6. Step 6: Final answer
   x = 1,304.46