Finding the Fourth Proportional to 2,581.47, 3,870.38 and 1,849.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,581.47 : 3,870.38 = 1,849.43 : x
2. Step 2: Convert to fraction form
   2,581.47/3,870.38 = 1,849.43/x
3. Step 3: Cross multiply
   2,581.47x = 3,870.38 × 1,849.43
4. Step 4: Simplify right side
   2,581.47x = 7,158,011.18
5. Step 5: Solve for x
   x = 7,158,011.18/2,581.47
6. Step 6: Final answer
   x = 2,772.84