Finding the Fourth Proportional to 2,076.44, 3,115.56 and 980.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.44 : 3,115.56 = 980.51 : x
2. Step 2: Convert to fraction form
   2,076.44/3,115.56 = 980.51/x
3. Step 3: Cross multiply
   2,076.44x = 3,115.56 × 980.51
4. Step 4: Simplify right side
   2,076.44x = 3,054,825.83
5. Step 5: Solve for x
   x = 3,054,825.83/2,076.44
6. Step 6: Final answer
   x = 1,471.19