Finding the Fourth Proportional to 2,582.29, 3,870.84 and 938.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,582.29 : 3,870.84 = 938.39 : x
2. Step 2: Convert to fraction form
   2,582.29/3,870.84 = 938.39/x
3. Step 3: Cross multiply
   2,582.29x = 3,870.84 × 938.39
4. Step 4: Simplify right side
   2,582.29x = 3,632,367.22
5. Step 5: Solve for x
   x = 3,632,367.22/2,582.29
6. Step 6: Final answer
   x = 1,406.65