Finding the Fourth Proportional to 2,160.91, 3,225.59 and 1,854.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,160.91 : 3,225.59 = 1,854.73 : x
2. Step 2: Convert to fraction form
   2,160.91/3,225.59 = 1,854.73/x
3. Step 3: Cross multiply
   2,160.91x = 3,225.59 × 1,854.73
4. Step 4: Simplify right side
   2,160.91x = 5,982,598.54
5. Step 5: Solve for x
   x = 5,982,598.54/2,160.91
6. Step 6: Final answer
   x = 2,768.56