Finding the Fourth Proportional to 2,429.37, 3,353.55 and 1,643.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,429.37 : 3,353.55 = 1,643.87 : x
2. Step 2: Convert to fraction form
   2,429.37/3,353.55 = 1,643.87/x
3. Step 3: Cross multiply
   2,429.37x = 3,353.55 × 1,643.87
4. Step 4: Simplify right side
   2,429.37x = 5,512,802.46
5. Step 5: Solve for x
   x = 5,512,802.46/2,429.37
6. Step 6: Final answer
   x = 2,269.23