Finding the Fourth Proportional to 1,123.22, 1,683.27 and 574.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.22 : 1,683.27 = 574.24 : x
2. Step 2: Convert to fraction form
   1,123.22/1,683.27 = 574.24/x
3. Step 3: Cross multiply
   1,123.22x = 1,683.27 × 574.24
4. Step 4: Simplify right side
   1,123.22x = 966,600.96
5. Step 5: Solve for x
   x = 966,600.96/1,123.22
6. Step 6: Final answer
   x = 860.56