Finding the Fourth Proportional to 2,219.16, 3,329.46 and 1,065

Step by Step Solution

1. Step 1: Write the proportion equation
   2,219.16 : 3,329.46 = 1,065 : x
2. Step 2: Convert to fraction form
   2,219.16/3,329.46 = 1,065/x
3. Step 3: Cross multiply
   2,219.16x = 3,329.46 × 1,065
4. Step 4: Simplify right side
   2,219.16x = 3,545,874.90
5. Step 5: Solve for x
   x = 3,545,874.90/2,219.16
6. Step 6: Final answer
   x = 1,597.85