Finding the Fourth Proportional to 3,521.25, 5,274.32 and 2,285.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,521.25 : 5,274.32 = 2,285.06 : x
2. Step 2: Convert to fraction form
   3,521.25/5,274.32 = 2,285.06/x
3. Step 3: Cross multiply
   3,521.25x = 5,274.32 × 2,285.06
4. Step 4: Simplify right side
   3,521.25x = 12,052,099.86
5. Step 5: Solve for x
   x = 12,052,099.86/3,521.25
6. Step 6: Final answer
   x = 3,422.68