Finding the Fourth Proportional to 2,581.37, 3,873.16 and 938.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,581.37 : 3,873.16 = 938.15 : x
2. Step 2: Convert to fraction form
   2,581.37/3,873.16 = 938.15/x
3. Step 3: Cross multiply
   2,581.37x = 3,873.16 × 938.15
4. Step 4: Simplify right side
   2,581.37x = 3,633,605.05
5. Step 5: Solve for x
   x = 3,633,605.05/2,581.37
6. Step 6: Final answer
   x = 1,407.63