Finding the Fourth Proportional to 1,446.60, 1,996.30 and 783.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,446.60 : 1,996.30 = 783.46 : x
2. Step 2: Convert to fraction form
   1,446.60/1,996.30 = 783.46/x
3. Step 3: Cross multiply
   1,446.60x = 1,996.30 × 783.46
4. Step 4: Simplify right side
   1,446.60x = 1,564,021.20
5. Step 5: Solve for x
   x = 1,564,021.20/1,446.60
6. Step 6: Final answer
   x = 1,081.17