Finding the Fourth Proportional to 1,446.84, 1,994.88 and 1,222.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,446.84 : 1,994.88 = 1,222.38 : x
2. Step 2: Convert to fraction form
   1,446.84/1,994.88 = 1,222.38/x
3. Step 3: Cross multiply
   1,446.84x = 1,994.88 × 1,222.38
4. Step 4: Simplify right side
   1,446.84x = 2,438,501.41
5. Step 5: Solve for x
   x = 2,438,501.41/1,446.84
6. Step 6: Final answer
   x = 1,685.40