Finding the Fourth Proportional to 2,429.96, 3,643.64 and 786.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,429.96 : 3,643.64 = 786.29 : x
2. Step 2: Convert to fraction form
   2,429.96/3,643.64 = 786.29/x
3. Step 3: Cross multiply
   2,429.96x = 3,643.64 × 786.29
4. Step 4: Simplify right side
   2,429.96x = 2,864,935.55
5. Step 5: Solve for x
   x = 2,864,935.55/2,429.96
6. Step 6: Final answer
   x = 1,179.01