Finding the Fourth Proportional to 1,630.79, 2,250.71 and 922.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,630.79 : 2,250.71 = 922.77 : x
2. Step 2: Convert to fraction form
   1,630.79/2,250.71 = 922.77/x
3. Step 3: Cross multiply
   1,630.79x = 2,250.71 × 922.77
4. Step 4: Simplify right side
   1,630.79x = 2,076,883.05
5. Step 5: Solve for x
   x = 2,076,883.05/1,630.79
6. Step 6: Final answer
   x = 1,273.55