Finding the Fourth Proportional to 3,835.10, 5,290.47 and 2,574.51

Step by Step Solution

1. Step 1: Write the proportion equation
   3,835.10 : 5,290.47 = 2,574.51 : x
2. Step 2: Convert to fraction form
   3,835.10/5,290.47 = 2,574.51/x
3. Step 3: Cross multiply
   3,835.10x = 5,290.47 × 2,574.51
4. Step 4: Simplify right side
   3,835.10x = 13,620,367.92
5. Step 5: Solve for x
   x = 13,620,367.92/3,835.10
6. Step 6: Final answer
   x = 3,551.51