Finding the Fourth Proportional to 1,799.25, 2,480.72 and 1,485.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,799.25 : 2,480.72 = 1,485.78 : x
2. Step 2: Convert to fraction form
   1,799.25/2,480.72 = 1,485.78/x
3. Step 3: Cross multiply
   1,799.25x = 2,480.72 × 1,485.78
4. Step 4: Simplify right side
   1,799.25x = 3,685,804.16
5. Step 5: Solve for x
   x = 3,685,804.16/1,799.25
6. Step 6: Final answer
   x = 2,048.52