Finding the Fourth Proportional to 2,380.76, 3,286.86 and 1,541.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,380.76 : 3,286.86 = 1,541.72 : x
2. Step 2: Convert to fraction form
   2,380.76/3,286.86 = 1,541.72/x
3. Step 3: Cross multiply
   2,380.76x = 3,286.86 × 1,541.72
4. Step 4: Simplify right side
   2,380.76x = 5,067,417.80
5. Step 5: Solve for x
   x = 5,067,417.80/2,380.76
6. Step 6: Final answer
   x = 2,128.49