Finding the Fourth Proportional to 1,636.34, 2,453.59 and 1,116.97

Step by Step Solution

1. Step 1: Write the proportion equation
   1,636.34 : 2,453.59 = 1,116.97 : x
2. Step 2: Convert to fraction form
   1,636.34/2,453.59 = 1,116.97/x
3. Step 3: Cross multiply
   1,636.34x = 2,453.59 × 1,116.97
4. Step 4: Simplify right side
   1,636.34x = 2,740,589.20
5. Step 5: Solve for x
   x = 2,740,589.20/1,636.34
6. Step 6: Final answer
   x = 1,674.82