Finding the Fourth Proportional to 1,662.82, 2,294.49 and 916.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662.82 : 2,294.49 = 916.72 : x
2. Step 2: Convert to fraction form
   1,662.82/2,294.49 = 916.72/x
3. Step 3: Cross multiply
   1,662.82x = 2,294.49 × 916.72
4. Step 4: Simplify right side
   1,662.82x = 2,103,404.87
5. Step 5: Solve for x
   x = 2,103,404.87/1,662.82
6. Step 6: Final answer
   x = 1,264.96