Finding the Fourth Proportional to 2,363.74, 3,540.89 and 1,621.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,363.74 : 3,540.89 = 1,621.53 : x
2. Step 2: Convert to fraction form
   2,363.74/3,540.89 = 1,621.53/x
3. Step 3: Cross multiply
   2,363.74x = 3,540.89 × 1,621.53
4. Step 4: Simplify right side
   2,363.74x = 5,741,641.66
5. Step 5: Solve for x
   x = 5,741,641.66/2,363.74
6. Step 6: Final answer
   x = 2,429.05