Finding the Fourth Proportional to 3,530.56, 5,294.88 and 1,222.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,530.56 : 5,294.88 = 1,222.72 : x
2. Step 2: Convert to fraction form
   3,530.56/5,294.88 = 1,222.72/x
3. Step 3: Cross multiply
   3,530.56x = 5,294.88 × 1,222.72
4. Step 4: Simplify right side
   3,530.56x = 6,474,155.67
5. Step 5: Solve for x
   x = 6,474,155.67/3,530.56
6. Step 6: Final answer
   x = 1,833.75