Finding the Fourth Proportional to 2,081.45, 3,116.10 and 1,838.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.45 : 3,116.10 = 1,838.45 : x
2. Step 2: Convert to fraction form
   2,081.45/3,116.10 = 1,838.45/x
3. Step 3: Cross multiply
   2,081.45x = 3,116.10 × 1,838.45
4. Step 4: Simplify right side
   2,081.45x = 5,728,794.05
5. Step 5: Solve for x
   x = 5,728,794.05/2,081.45
6. Step 6: Final answer
   x = 2,752.31