Finding the Fourth Proportional to 1,453.42, 2,007.16 and 923.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,453.42 : 2,007.16 = 923.30 : x
2. Step 2: Convert to fraction form
   1,453.42/2,007.16 = 923.30/x
3. Step 3: Cross multiply
   1,453.42x = 2,007.16 × 923.30
4. Step 4: Simplify right side
   1,453.42x = 1,853,210.83
5. Step 5: Solve for x
   x = 1,853,210.83/1,453.42
6. Step 6: Final answer
   x = 1,275.07