Finding the Fourth Proportional to 1,323.80, 1,822.69 and 1,124.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,323.80 : 1,822.69 = 1,124.21 : x
2. Step 2: Convert to fraction form
   1,323.80/1,822.69 = 1,124.21/x
3. Step 3: Cross multiply
   1,323.80x = 1,822.69 × 1,124.21
4. Step 4: Simplify right side
   1,323.80x = 2,049,086.32
5. Step 5: Solve for x
   x = 2,049,086.32/1,323.80
6. Step 6: Final answer
   x = 1,547.88