Finding the Fourth Proportional to 2,481.17, 3,719.39 and 920.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,481.17 : 3,719.39 = 920.76 : x
2. Step 2: Convert to fraction form
   2,481.17/3,719.39 = 920.76/x
3. Step 3: Cross multiply
   2,481.17x = 3,719.39 × 920.76
4. Step 4: Simplify right side
   2,481.17x = 3,424,660.93
5. Step 5: Solve for x
   x = 3,424,660.93/2,481.17
6. Step 6: Final answer
   x = 1,380.26