Finding the Fourth Proportional to 2,230.98, 3,078.24 and 1,485.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,230.98 : 3,078.24 = 1,485.34 : x
2. Step 2: Convert to fraction form
   2,230.98/3,078.24 = 1,485.34/x
3. Step 3: Cross multiply
   2,230.98x = 3,078.24 × 1,485.34
4. Step 4: Simplify right side
   2,230.98x = 4,572,219.74
5. Step 5: Solve for x
   x = 4,572,219.74/2,230.98
6. Step 6: Final answer
   x = 2,049.43