Finding the Fourth Proportional to 1,333.48, 1,998.24 and 683.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333.48 : 1,998.24 = 683.68 : x
2. Step 2: Convert to fraction form
   1,333.48/1,998.24 = 683.68/x
3. Step 3: Cross multiply
   1,333.48x = 1,998.24 × 683.68
4. Step 4: Simplify right side
   1,333.48x = 1,366,156.72
5. Step 5: Solve for x
   x = 1,366,156.72/1,333.48
6. Step 6: Final answer
   x = 1,024.50