Finding the Fourth Proportional to 1,322.89, 1,821.42 and 1,123.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,322.89 : 1,821.42 = 1,123.33 : x
2. Step 2: Convert to fraction form
   1,322.89/1,821.42 = 1,123.33/x
3. Step 3: Cross multiply
   1,322.89x = 1,821.42 × 1,123.33
4. Step 4: Simplify right side
   1,322.89x = 2,046,055.39
5. Step 5: Solve for x
   x = 2,046,055.39/1,322.89
6. Step 6: Final answer
   x = 1,546.65