Finding the Fourth Proportional to 3,870.52, 5,814.69 and 2,231.08

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.52 : 5,814.69 = 2,231.08 : x
2. Step 2: Convert to fraction form
   3,870.52/5,814.69 = 2,231.08/x
3. Step 3: Cross multiply
   3,870.52x = 5,814.69 × 2,231.08
4. Step 4: Simplify right side
   3,870.52x = 12,973,038.57
5. Step 5: Solve for x
   x = 12,973,038.57/3,870.52
6. Step 6: Final answer
   x = 3,351.76