Finding the Fourth Proportional to 1,948.24, 2,920.04 and 1,124.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,948.24 : 2,920.04 = 1,124.78 : x
2. Step 2: Convert to fraction form
   1,948.24/2,920.04 = 1,124.78/x
3. Step 3: Cross multiply
   1,948.24x = 2,920.04 × 1,124.78
4. Step 4: Simplify right side
   1,948.24x = 3,284,386.59
5. Step 5: Solve for x
   x = 3,284,386.59/1,948.24
6. Step 6: Final answer
   x = 1,685.82