Finding the Fourth Proportional to 2,570.40, 3,853.68 and 1,839.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,570.40 : 3,853.68 = 1,839.52 : x
2. Step 2: Convert to fraction form
   2,570.40/3,853.68 = 1,839.52/x
3. Step 3: Cross multiply
   2,570.40x = 3,853.68 × 1,839.52
4. Step 4: Simplify right side
   2,570.40x = 7,088,921.43
5. Step 5: Solve for x
   x = 7,088,921.43/2,570.40
6. Step 6: Final answer
   x = 2,757.91