Finding the Fourth Proportional to 1,627.73, 2,245.77 and 919.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,627.73 : 2,245.77 = 919.49 : x
2. Step 2: Convert to fraction form
   1,627.73/2,245.77 = 919.49/x
3. Step 3: Cross multiply
   1,627.73x = 2,245.77 × 919.49
4. Step 4: Simplify right side
   1,627.73x = 2,064,951.83
5. Step 5: Solve for x
   x = 2,064,951.83/1,627.73
6. Step 6: Final answer
   x = 1,268.61