Finding the Fourth Proportional to 1,662.24, 2,293.88 and 916.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662.24 : 2,293.88 = 916.18 : x
2. Step 2: Convert to fraction form
   1,662.24/2,293.88 = 916.18/x
3. Step 3: Cross multiply
   1,662.24x = 2,293.88 × 916.18
4. Step 4: Simplify right side
   1,662.24x = 2,101,606.98
5. Step 5: Solve for x
   x = 2,101,606.98/1,662.24
6. Step 6: Final answer
   x = 1,264.32