Finding the Fourth Proportional to 1,630.72, 2,250.33 and 922.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,630.72 : 2,250.33 = 922.60 : x
2. Step 2: Convert to fraction form
   1,630.72/2,250.33 = 922.60/x
3. Step 3: Cross multiply
   1,630.72x = 2,250.33 × 922.60
4. Step 4: Simplify right side
   1,630.72x = 2,076,154.46
5. Step 5: Solve for x
   x = 2,076,154.46/1,630.72
6. Step 6: Final answer
   x = 1,273.15