Finding the Fourth Proportional to 3,526.42, 5,258.59 and 3,280.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,526.42 : 5,258.59 = 3,280.18 : x
2. Step 2: Convert to fraction form
   3,526.42/5,258.59 = 3,280.18/x
3. Step 3: Cross multiply
   3,526.42x = 5,258.59 × 3,280.18
4. Step 4: Simplify right side
   3,526.42x = 17,249,105.35
5. Step 5: Solve for x
   x = 17,249,105.35/3,526.42
6. Step 6: Final answer
   x = 4,891.39