Finding the Fourth Proportional to 1,627.38, 2,245.84 and 919.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,627.38 : 2,245.84 = 919.25 : x
2. Step 2: Convert to fraction form
   1,627.38/2,245.84 = 919.25/x
3. Step 3: Cross multiply
   1,627.38x = 2,245.84 × 919.25
4. Step 4: Simplify right side
   1,627.38x = 2,064,484.61
5. Step 5: Solve for x
   x = 2,064,484.61/1,627.38
6. Step 6: Final answer
   x = 1,268.60