Finding the Fourth Proportional to 2,429.92, 3,649.56 and 2,158.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,429.92 : 3,649.56 = 2,158.36 : x
2. Step 2: Convert to fraction form
   2,429.92/3,649.56 = 2,158.36/x
3. Step 3: Cross multiply
   2,429.92x = 3,649.56 × 2,158.36
4. Step 4: Simplify right side
   2,429.92x = 7,877,064.32
5. Step 5: Solve for x
   x = 7,877,064.32/2,429.92
6. Step 6: Final answer
   x = 3,241.70