Finding the Fourth Proportional to 2,671.25, 4,009.46 and 1,285.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,671.25 : 4,009.46 = 1,285.54 : x
2. Step 2: Convert to fraction form
   2,671.25/4,009.46 = 1,285.54/x
3. Step 3: Cross multiply
   2,671.25x = 4,009.46 × 1,285.54
4. Step 4: Simplify right side
   2,671.25x = 5,154,321.21
5. Step 5: Solve for x
   x = 5,154,321.21/2,671.25
6. Step 6: Final answer
   x = 1,929.55