Finding the Fourth Proportional to 3,763.49, 5,643.86 and 1,681.43

Step by Step Solution

1. Step 1: Write the proportion equation
   3,763.49 : 5,643.86 = 1,681.43 : x
2. Step 2: Convert to fraction form
   3,763.49/5,643.86 = 1,681.43/x
3. Step 3: Cross multiply
   3,763.49x = 5,643.86 × 1,681.43
4. Step 4: Simplify right side
   3,763.49x = 9,489,718.89
5. Step 5: Solve for x
   x = 9,489,718.89/3,763.49
6. Step 6: Final answer
   x = 2,521.52