Finding the Fourth Proportional to 2,762.43, 3,809.53 and 2,131.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,762.43 : 3,809.53 = 2,131.94 : x
2. Step 2: Convert to fraction form
   2,762.43/3,809.53 = 2,131.94/x
3. Step 3: Cross multiply
   2,762.43x = 3,809.53 × 2,131.94
4. Step 4: Simplify right side
   2,762.43x = 8,121,689.39
5. Step 5: Solve for x
   x = 8,121,689.39/2,762.43
6. Step 6: Final answer
   x = 2,940.05