Finding the Fourth Proportional to 2,961.50, 4,442.28 and 1,013.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,961.50 : 4,442.28 = 1,013.72 : x
2. Step 2: Convert to fraction form
   2,961.50/4,442.28 = 1,013.72/x
3. Step 3: Cross multiply
   2,961.50x = 4,442.28 × 1,013.72
4. Step 4: Simplify right side
   2,961.50x = 4,503,223.01
5. Step 5: Solve for x
   x = 4,503,223.01/2,961.50
6. Step 6: Final answer
   x = 1,520.59