Finding the Fourth Proportional to 1,920.23, 2,649.91 and 1,124.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,920.23 : 2,649.91 = 1,124.10 : x
2. Step 2: Convert to fraction form
   1,920.23/2,649.91 = 1,124.10/x
3. Step 3: Cross multiply
   1,920.23x = 2,649.91 × 1,124.10
4. Step 4: Simplify right side
   1,920.23x = 2,978,750.58
5. Step 5: Solve for x
   x = 2,978,750.58/1,920.23
6. Step 6: Final answer
   x = 1,551.25