Finding the Fourth Proportional to 1,631.46, 2,250.86 and 923.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,631.46 : 2,250.86 = 923.22 : x
2. Step 2: Convert to fraction form
   1,631.46/2,250.86 = 923.22/x
3. Step 3: Cross multiply
   1,631.46x = 2,250.86 × 923.22
4. Step 4: Simplify right side
   1,631.46x = 2,078,034.35
5. Step 5: Solve for x
   x = 2,078,034.35/1,631.46
6. Step 6: Final answer
   x = 1,273.73