Finding the Fourth Proportional to 1,662.85, 2,294.72 and 916.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662.85 : 2,294.72 = 916.84 : x
2. Step 2: Convert to fraction form
   1,662.85/2,294.72 = 916.84/x
3. Step 3: Cross multiply
   1,662.85x = 2,294.72 × 916.84
4. Step 4: Simplify right side
   1,662.85x = 2,103,880.76
5. Step 5: Solve for x
   x = 2,103,880.76/1,662.85
6. Step 6: Final answer
   x = 1,265.23