Finding the Fourth Proportional to 3,758.43, 5,638.86 and 1,810.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,758.43 : 5,638.86 = 1,810.38 : x
2. Step 2: Convert to fraction form
   3,758.43/5,638.86 = 1,810.38/x
3. Step 3: Cross multiply
   3,758.43x = 5,638.86 × 1,810.38
4. Step 4: Simplify right side
   3,758.43x = 10,208,479.37
5. Step 5: Solve for x
   x = 10,208,479.37/3,758.43
6. Step 6: Final answer
   x = 2,716.16