Finding the Fourth Proportional to 1,446.89, 1,996.68 and 783.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,446.89 : 1,996.68 = 783.73 : x
2. Step 2: Convert to fraction form
   1,446.89/1,996.68 = 783.73/x
3. Step 3: Cross multiply
   1,446.89x = 1,996.68 × 783.73
4. Step 4: Simplify right side
   1,446.89x = 1,564,853.02
5. Step 5: Solve for x
   x = 1,564,853.02/1,446.89
6. Step 6: Final answer
   x = 1,081.53