Finding the Fourth Proportional to 2,429.62, 3,644.49 and 786.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,429.62 : 3,644.49 = 786.34 : x
2. Step 2: Convert to fraction form
   2,429.62/3,644.49 = 786.34/x
3. Step 3: Cross multiply
   2,429.62x = 3,644.49 × 786.34
4. Step 4: Simplify right side
   2,429.62x = 2,865,808.27
5. Step 5: Solve for x
   x = 2,865,808.27/2,429.62
6. Step 6: Final answer
   x = 1,179.53