Finding the Fourth Proportional to 1,269.39, 1,902.57 and 683.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,269.39 : 1,902.57 = 683.56 : x
2. Step 2: Convert to fraction form
   1,269.39/1,902.57 = 683.56/x
3. Step 3: Cross multiply
   1,269.39x = 1,902.57 × 683.56
4. Step 4: Simplify right side
   1,269.39x = 1,300,520.75
5. Step 5: Solve for x
   x = 1,300,520.75/1,269.39
6. Step 6: Final answer
   x = 1,024.52