Finding the Fourth Proportional to 3,521.90, 5,283.26 and 2,061.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,521.90 : 5,283.26 = 2,061.06 : x
2. Step 2: Convert to fraction form
   3,521.90/5,283.26 = 2,061.06/x
3. Step 3: Cross multiply
   3,521.90x = 5,283.26 × 2,061.06
4. Step 4: Simplify right side
   3,521.90x = 10,889,105.55
5. Step 5: Solve for x
   x = 10,889,105.55/3,521.90
6. Step 6: Final answer
   x = 3,091.83