Finding the Fourth Proportional to 2,055.28, 2,836.28 and 1,123.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,055.28 : 2,836.28 = 1,123.76 : x
2. Step 2: Convert to fraction form
   2,055.28/2,836.28 = 1,123.76/x
3. Step 3: Cross multiply
   2,055.28x = 2,836.28 × 1,123.76
4. Step 4: Simplify right side
   2,055.28x = 3,187,298.01
5. Step 5: Solve for x
   x = 3,187,298.01/2,055.28
6. Step 6: Final answer
   x = 1,550.79