Finding the Fourth Proportional to 1,665.52, 2,496.60 and 1,116.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.52 : 2,496.60 = 1,116.44 : x
2. Step 2: Convert to fraction form
   1,665.52/2,496.60 = 1,116.44/x
3. Step 3: Cross multiply
   1,665.52x = 2,496.60 × 1,116.44
4. Step 4: Simplify right side
   1,665.52x = 2,787,291.62
5. Step 5: Solve for x
   x = 2,787,291.62/1,665.52
6. Step 6: Final answer
   x = 1,673.53