Finding the Fourth Proportional to 2,291.49, 3,437.31 and 2,171.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,291.49 : 3,437.31 = 2,171.51 : x
2. Step 2: Convert to fraction form
   2,291.49/3,437.31 = 2,171.51/x
3. Step 3: Cross multiply
   2,291.49x = 3,437.31 × 2,171.51
4. Step 4: Simplify right side
   2,291.49x = 7,464,150.78
5. Step 5: Solve for x
   x = 7,464,150.78/2,291.49
6. Step 6: Final answer
   x = 3,257.34