Finding the Fourth Proportional to 2,485.86, 3,725.37 and 1,445.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485.86 : 3,725.37 = 1,445.19 : x
2. Step 2: Convert to fraction form
   2,485.86/3,725.37 = 1,445.19/x
3. Step 3: Cross multiply
   2,485.86x = 3,725.37 × 1,445.19
4. Step 4: Simplify right side
   2,485.86x = 5,383,867.47
5. Step 5: Solve for x
   x = 5,383,867.47/2,485.86
6. Step 6: Final answer
   x = 2,165.80