Finding the Fourth Proportional to 1,443.42, 1,992.47 and 946.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.42 : 1,992.47 = 946.49 : x
2. Step 2: Convert to fraction form
   1,443.42/1,992.47 = 946.49/x
3. Step 3: Cross multiply
   1,443.42x = 1,992.47 × 946.49
4. Step 4: Simplify right side
   1,443.42x = 1,885,838.24
5. Step 5: Solve for x
   x = 1,885,838.24/1,443.42
6. Step 6: Final answer
   x = 1,306.51