Finding the Fourth Proportional to 1,552.30, 2,142.63 and 923.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,552.30 : 2,142.63 = 923.27 : x
2. Step 2: Convert to fraction form
   1,552.30/2,142.63 = 923.27/x
3. Step 3: Cross multiply
   1,552.30x = 2,142.63 × 923.27
4. Step 4: Simplify right side
   1,552.30x = 1,978,221.38
5. Step 5: Solve for x
   x = 1,978,221.38/1,552.30
6. Step 6: Final answer
   x = 1,274.38