Finding the Fourth Proportional to 3,618.82, 5,429.54 and 1,426.33

Step by Step Solution

1. Step 1: Write the proportion equation
   3,618.82 : 5,429.54 = 1,426.33 : x
2. Step 2: Convert to fraction form
   3,618.82/5,429.54 = 1,426.33/x
3. Step 3: Cross multiply
   3,618.82x = 5,429.54 × 1,426.33
4. Step 4: Simplify right side
   3,618.82x = 7,744,315.79
5. Step 5: Solve for x
   x = 7,744,315.79/3,618.82
6. Step 6: Final answer
   x = 2,140.01