Finding the Fourth Proportional to 2,570.72, 3,854.72 and 1,335.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,570.72 : 3,854.72 = 1,335.11 : x
2. Step 2: Convert to fraction form
   2,570.72/3,854.72 = 1,335.11/x
3. Step 3: Cross multiply
   2,570.72x = 3,854.72 × 1,335.11
4. Step 4: Simplify right side
   2,570.72x = 5,146,449.27
5. Step 5: Solve for x
   x = 5,146,449.27/2,570.72
6. Step 6: Final answer
   x = 2,001.95