Finding the Fourth Proportional to 3,522.29, 5,280.02 and 1,960.87

Step by Step Solution

1. Step 1: Write the proportion equation
   3,522.29 : 5,280.02 = 1,960.87 : x
2. Step 2: Convert to fraction form
   3,522.29/5,280.02 = 1,960.87/x
3. Step 3: Cross multiply
   3,522.29x = 5,280.02 × 1,960.87
4. Step 4: Simplify right side
   3,522.29x = 10,353,432.82
5. Step 5: Solve for x
   x = 10,353,432.82/3,522.29
6. Step 6: Final answer
   x = 2,939.40