Finding the Fourth Proportional to 1,920.54, 2,650.61 and 1,124.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,920.54 : 2,650.61 = 1,124.10 : x
2. Step 2: Convert to fraction form
   1,920.54/2,650.61 = 1,124.10/x
3. Step 3: Cross multiply
   1,920.54x = 2,650.61 × 1,124.10
4. Step 4: Simplify right side
   1,920.54x = 2,979,550.70
5. Step 5: Solve for x
   x = 2,979,550.70/1,920.54
6. Step 6: Final answer
   x = 1,551.41