Finding the Fourth Proportional to 1,052.82, 1,570.05 and 923.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,052.82 : 1,570.05 = 923.43 : x
2. Step 2: Convert to fraction form
   1,052.82/1,570.05 = 923.43/x
3. Step 3: Cross multiply
   1,052.82x = 1,570.05 × 923.43
4. Step 4: Simplify right side
   1,052.82x = 1,449,831.27
5. Step 5: Solve for x
   x = 1,449,831.27/1,052.82
6. Step 6: Final answer
   x = 1,377.09