Finding the Fourth Proportional to 1,823.20, 2,514.72 and 1,124.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,823.20 : 2,514.72 = 1,124.80 : x
2. Step 2: Convert to fraction form
   1,823.20/2,514.72 = 1,124.80/x
3. Step 3: Cross multiply
   1,823.20x = 2,514.72 × 1,124.80
4. Step 4: Simplify right side
   1,823.20x = 2,828,557.06
5. Step 5: Solve for x
   x = 2,828,557.06/1,823.20
6. Step 6: Final answer
   x = 1,551.42