Finding the Fourth Proportional to 1,123.37, 1,684.01 and 574.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.37 : 1,684.01 = 574.34 : x
2. Step 2: Convert to fraction form
   1,123.37/1,684.01 = 574.34/x
3. Step 3: Cross multiply
   1,123.37x = 1,684.01 × 574.34
4. Step 4: Simplify right side
   1,123.37x = 967,196.79
5. Step 5: Solve for x
   x = 967,196.79/1,123.37
6. Step 6: Final answer
   x = 860.98