Finding the Fourth Proportional to 2,570.25, 3,855.92 and 1,031.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,570.25 : 3,855.92 = 1,031.25 : x
2. Step 2: Convert to fraction form
   2,570.25/3,855.92 = 1,031.25/x
3. Step 3: Cross multiply
   2,570.25x = 3,855.92 × 1,031.25
4. Step 4: Simplify right side
   2,570.25x = 3,976,412.34
5. Step 5: Solve for x
   x = 3,976,412.34/2,570.25
6. Step 6: Final answer
   x = 1,547.09