Finding the Fourth Proportional to 2,583.47, 3,873.98 and 939.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,583.47 : 3,873.98 = 939.57 : x
2. Step 2: Convert to fraction form
   2,583.47/3,873.98 = 939.57/x
3. Step 3: Cross multiply
   2,583.47x = 3,873.98 × 939.57
4. Step 4: Simplify right side
   2,583.47x = 3,639,870.69
5. Step 5: Solve for x
   x = 3,639,870.69/2,583.47
6. Step 6: Final answer
   x = 1,408.91