Finding the Fourth Proportional to 2,185.18, 3,274.93 and 1,142.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.18 : 3,274.93 = 1,142.54 : x
2. Step 2: Convert to fraction form
   2,185.18/3,274.93 = 1,142.54/x
3. Step 3: Cross multiply
   2,185.18x = 3,274.93 × 1,142.54
4. Step 4: Simplify right side
   2,185.18x = 3,741,735.86
5. Step 5: Solve for x
   x = 3,741,735.86/2,185.18
6. Step 6: Final answer
   x = 1,712.33