Finding the Fourth Proportional to 1,800, 2,477.28 and 1,482.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,800 : 2,477.28 = 1,482.72 : x
2. Step 2: Convert to fraction form
   1,800/2,477.28 = 1,482.72/x
3. Step 3: Cross multiply
   1,800x = 2,477.28 × 1,482.72
4. Step 4: Simplify right side
   1,800x = 3,673,112.60
5. Step 5: Solve for x
   x = 3,673,112.60/1,800
6. Step 6: Final answer
   x = 2,040.62