Finding the Fourth Proportional to 1,124.89, 1,553.18 and 683.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,124.89 : 1,553.18 = 683.39 : x
2. Step 2: Convert to fraction form
   1,124.89/1,553.18 = 683.39/x
3. Step 3: Cross multiply
   1,124.89x = 1,553.18 × 683.39
4. Step 4: Simplify right side
   1,124.89x = 1,061,428.15
5. Step 5: Solve for x
   x = 1,061,428.15/1,124.89
6. Step 6: Final answer
   x = 943.59