Finding the Fourth Proportional to 3,870.91, 5,806.33 and 2,300.51

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.91 : 5,806.33 = 2,300.51 : x
2. Step 2: Convert to fraction form
   3,870.91/5,806.33 = 2,300.51/x
3. Step 3: Cross multiply
   3,870.91x = 5,806.33 × 2,300.51
4. Step 4: Simplify right side
   3,870.91x = 13,357,508.73
5. Step 5: Solve for x
   x = 13,357,508.73/3,870.91
6. Step 6: Final answer
   x = 3,450.75