Finding the Fourth Proportional to 2,218.69, 3,328.71 and 1,049.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218.69 : 3,328.71 = 1,049.59 : x
2. Step 2: Convert to fraction form
   2,218.69/3,328.71 = 1,049.59/x
3. Step 3: Cross multiply
   2,218.69x = 3,328.71 × 1,049.59
4. Step 4: Simplify right side
   2,218.69x = 3,493,780.73
5. Step 5: Solve for x
   x = 3,493,780.73/2,218.69
6. Step 6: Final answer
   x = 1,574.70