Finding the Fourth Proportional to 2,483.43, 3,724.53 and 839.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,483.43 : 3,724.53 = 839.94 : x
2. Step 2: Convert to fraction form
   2,483.43/3,724.53 = 839.94/x
3. Step 3: Cross multiply
   2,483.43x = 3,724.53 × 839.94
4. Step 4: Simplify right side
   2,483.43x = 3,128,381.73
5. Step 5: Solve for x
   x = 3,128,381.73/2,483.43
6. Step 6: Final answer
   x = 1,259.70