Finding the Fourth Proportional to 2,941.12, 4,057.71 and 1,820.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,941.12 : 4,057.71 = 1,820.89 : x
2. Step 2: Convert to fraction form
   2,941.12/4,057.71 = 1,820.89/x
3. Step 3: Cross multiply
   2,941.12x = 4,057.71 × 1,820.89
4. Step 4: Simplify right side
   2,941.12x = 7,388,643.56
5. Step 5: Solve for x
   x = 7,388,643.56/2,941.12
6. Step 6: Final answer
   x = 2,512.19