Finding the Fourth Proportional to 3,522.76, 5,280.33 and 2,291.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,522.76 : 5,280.33 = 2,291.06 : x
2. Step 2: Convert to fraction form
   3,522.76/5,280.33 = 2,291.06/x
3. Step 3: Cross multiply
   3,522.76x = 5,280.33 × 2,291.06
4. Step 4: Simplify right side
   3,522.76x = 12,097,533.05
5. Step 5: Solve for x
   x = 12,097,533.05/3,522.76
6. Step 6: Final answer
   x = 3,434.10