Finding the Fourth Proportional to 2,116.98, 2,921.42 and 1,185.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116.98 : 2,921.42 = 1,185.48 : x
2. Step 2: Convert to fraction form
   2,116.98/2,921.42 = 1,185.48/x
3. Step 3: Cross multiply
   2,116.98x = 2,921.42 × 1,185.48
4. Step 4: Simplify right side
   2,116.98x = 3,463,287.95
5. Step 5: Solve for x
   x = 3,463,287.95/2,116.98
6. Step 6: Final answer
   x = 1,635.96