Finding the Fourth Proportional to 3,869.31, 5,804.27 and 2,319.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,869.31 : 5,804.27 = 2,319.89 : x
2. Step 2: Convert to fraction form
   3,869.31/5,804.27 = 2,319.89/x
3. Step 3: Cross multiply
   3,869.31x = 5,804.27 × 2,319.89
4. Step 4: Simplify right side
   3,869.31x = 13,465,244.71
5. Step 5: Solve for x
   x = 13,465,244.71/3,869.31
6. Step 6: Final answer
   x = 3,480.01