Finding the Fourth Proportional to 1,446.25, 1,995.15 and 921.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,446.25 : 1,995.15 = 921.94 : x
2. Step 2: Convert to fraction form
   1,446.25/1,995.15 = 921.94/x
3. Step 3: Cross multiply
   1,446.25x = 1,995.15 × 921.94
4. Step 4: Simplify right side
   1,446.25x = 1,839,408.59
5. Step 5: Solve for x
   x = 1,839,408.59/1,446.25
6. Step 6: Final answer
   x = 1,271.85