Finding the Fourth Proportional to 1,662.43, 2,294.24 and 916.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662.43 : 2,294.24 = 916.49 : x
2. Step 2: Convert to fraction form
   1,662.43/2,294.24 = 916.49/x
3. Step 3: Cross multiply
   1,662.43x = 2,294.24 × 916.49
4. Step 4: Simplify right side
   1,662.43x = 2,102,648.02
5. Step 5: Solve for x
   x = 2,102,648.02/1,662.43
6. Step 6: Final answer
   x = 1,264.80