Finding the Fourth Proportional to 1,074.48, 1,608.90 and 683.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,074.48 : 1,608.90 = 683.52 : x
2. Step 2: Convert to fraction form
   1,074.48/1,608.90 = 683.52/x
3. Step 3: Cross multiply
   1,074.48x = 1,608.90 × 683.52
4. Step 4: Simplify right side
   1,074.48x = 1,099,715.33
5. Step 5: Solve for x
   x = 1,099,715.33/1,074.48
6. Step 6: Final answer
   x = 1,023.49