Finding the Fourth Proportional to 3,801.39, 5,697.42 and 2,159.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,801.39 : 5,697.42 = 2,159.31 : x
2. Step 2: Convert to fraction form
   3,801.39/5,697.42 = 2,159.31/x
3. Step 3: Cross multiply
   3,801.39x = 5,697.42 × 2,159.31
4. Step 4: Simplify right side
   3,801.39x = 12,302,495.98
5. Step 5: Solve for x
   x = 12,302,495.98/3,801.39
6. Step 6: Final answer
   x = 3,236.32