Finding the Fourth Proportional to 2,817.49, 3,888.21 and 1,541.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,817.49 : 3,888.21 = 1,541.43 : x
2. Step 2: Convert to fraction form
   2,817.49/3,888.21 = 1,541.43/x
3. Step 3: Cross multiply
   2,817.49x = 3,888.21 × 1,541.43
4. Step 4: Simplify right side
   2,817.49x = 5,993,384.10
5. Step 5: Solve for x
   x = 5,993,384.10/2,817.49
6. Step 6: Final answer
   x = 2,127.21