Finding the Fourth Proportional to 1,659.42, 2,299.46 and 1,638.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,659.42 : 2,299.46 = 1,638.54 : x
2. Step 2: Convert to fraction form
   1,659.42/2,299.46 = 1,638.54/x
3. Step 3: Cross multiply
   1,659.42x = 2,299.46 × 1,638.54
4. Step 4: Simplify right side
   1,659.42x = 3,767,749.00
5. Step 5: Solve for x
   x = 3,767,749.00/1,659.42
6. Step 6: Final answer
   x = 2,270.52