Finding the Fourth Proportional to 2,031.81, 3,040.62 and 1,251.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,031.81 : 3,040.62 = 1,251.57 : x
2. Step 2: Convert to fraction form
   2,031.81/3,040.62 = 1,251.57/x
3. Step 3: Cross multiply
   2,031.81x = 3,040.62 × 1,251.57
4. Step 4: Simplify right side
   2,031.81x = 3,805,548.77
5. Step 5: Solve for x
   x = 3,805,548.77/2,031.81
6. Step 6: Final answer
   x = 1,872.98