Finding the Fourth Proportional to 2,619.46, 3,930.41 and 1,839.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,619.46 : 3,930.41 = 1,839.43 : x
2. Step 2: Convert to fraction form
   2,619.46/3,930.41 = 1,839.43/x
3. Step 3: Cross multiply
   2,619.46x = 3,930.41 × 1,839.43
4. Step 4: Simplify right side
   2,619.46x = 7,229,714.07
5. Step 5: Solve for x
   x = 7,229,714.07/2,619.46
6. Step 6: Final answer
   x = 2,760.00