Finding the Fourth Proportional to 6,429.83, 9,643.39 and 1,811.75

Step by Step Solution

1. Step 1: Write the proportion equation
   6,429.83 : 9,643.39 = 1,811.75 : x
2. Step 2: Convert to fraction form
   6,429.83/9,643.39 = 1,811.75/x
3. Step 3: Cross multiply
   6,429.83x = 9,643.39 × 1,811.75
4. Step 4: Simplify right side
   6,429.83x = 17,471,411.83
5. Step 5: Solve for x
   x = 17,471,411.83/6,429.83
6. Step 6: Final answer
   x = 2,717.24