Finding the Fourth Proportional to 2,280, 3,146.40 and 1,659.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,280 : 3,146.40 = 1,659.52 : x
2. Step 2: Convert to fraction form
   2,280/3,146.40 = 1,659.52/x
3. Step 3: Cross multiply
   2,280x = 3,146.40 × 1,659.52
4. Step 4: Simplify right side
   2,280x = 5,221,513.73
5. Step 5: Solve for x
   x = 5,221,513.73/2,280
6. Step 6: Final answer
   x = 2,290.14