Finding the Fourth Proportional to 2,659.55, 3,989.58 and 1,017.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,659.55 : 3,989.58 = 1,017.47 : x
2. Step 2: Convert to fraction form
   2,659.55/3,989.58 = 1,017.47/x
3. Step 3: Cross multiply
   2,659.55x = 3,989.58 × 1,017.47
4. Step 4: Simplify right side
   2,659.55x = 4,059,258.01
5. Step 5: Solve for x
   x = 4,059,258.01/2,659.55
6. Step 6: Final answer
   x = 1,526.30