Finding the Fourth Proportional to 1,662.41, 2,294.01 and 916.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662.41 : 2,294.01 = 916.31 : x
2. Step 2: Convert to fraction form
   1,662.41/2,294.01 = 916.31/x
3. Step 3: Cross multiply
   1,662.41x = 2,294.01 × 916.31
4. Step 4: Simplify right side
   1,662.41x = 2,102,012.83
5. Step 5: Solve for x
   x = 2,102,012.83/1,662.41
6. Step 6: Final answer
   x = 1,264.44