Finding the Fourth Proportional to 2,078.46, 3,120.72 and 1,301.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078.46 : 3,120.72 = 1,301.76 : x
2. Step 2: Convert to fraction form
   2,078.46/3,120.72 = 1,301.76/x
3. Step 3: Cross multiply
   2,078.46x = 3,120.72 × 1,301.76
4. Step 4: Simplify right side
   2,078.46x = 4,062,428.47
5. Step 5: Solve for x
   x = 4,062,428.47/2,078.46
6. Step 6: Final answer
   x = 1,954.54