Finding the Fourth Proportional to 2,231.73, 3,080.30 and 1,485.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,231.73 : 3,080.30 = 1,485.72 : x
2. Step 2: Convert to fraction form
   2,231.73/3,080.30 = 1,485.72/x
3. Step 3: Cross multiply
   2,231.73x = 3,080.30 × 1,485.72
4. Step 4: Simplify right side
   2,231.73x = 4,576,463.32
5. Step 5: Solve for x
   x = 4,576,463.32/2,231.73
6. Step 6: Final answer
   x = 2,050.63