Finding the Fourth Proportional to 1,574.92, 2,173.49 and 945.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,574.92 : 2,173.49 = 945.47 : x
2. Step 2: Convert to fraction form
   1,574.92/2,173.49 = 945.47/x
3. Step 3: Cross multiply
   1,574.92x = 2,173.49 × 945.47
4. Step 4: Simplify right side
   1,574.92x = 2,054,969.59
5. Step 5: Solve for x
   x = 2,054,969.59/1,574.92
6. Step 6: Final answer
   x = 1,304.81