Finding the Fourth Proportional to 3,744.49, 5,618.33 and 1,405.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,744.49 : 5,618.33 = 1,405.61 : x
2. Step 2: Convert to fraction form
   3,744.49/5,618.33 = 1,405.61/x
3. Step 3: Cross multiply
   3,744.49x = 5,618.33 × 1,405.61
4. Step 4: Simplify right side
   3,744.49x = 7,897,187.85
5. Step 5: Solve for x
   x = 7,897,187.85/3,744.49
6. Step 6: Final answer
   x = 2,109.02