Finding the Fourth Proportional to 1,641.20, 2,460.94 and 1,454.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,641.20 : 2,460.94 = 1,454.05 : x
2. Step 2: Convert to fraction form
   1,641.20/2,460.94 = 1,454.05/x
3. Step 3: Cross multiply
   1,641.20x = 2,460.94 × 1,454.05
4. Step 4: Simplify right side
   1,641.20x = 3,578,339.47
5. Step 5: Solve for x
   x = 3,578,339.47/1,641.20
6. Step 6: Final answer
   x = 2,180.32