Finding the Fourth Proportional to 2,429.11, 3,640.83 and 1,043.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,429.11 : 3,640.83 = 1,043.20 : x
2. Step 2: Convert to fraction form
   2,429.11/3,640.83 = 1,043.20/x
3. Step 3: Cross multiply
   2,429.11x = 3,640.83 × 1,043.20
4. Step 4: Simplify right side
   2,429.11x = 3,798,113.86
5. Step 5: Solve for x
   x = 3,798,113.86/2,429.11
6. Step 6: Final answer
   x = 1,563.58