Finding the Fourth Proportional to 2,216.69, 3,059.33 and 1,430.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,216.69 : 3,059.33 = 1,430.58 : x
2. Step 2: Convert to fraction form
   2,216.69/3,059.33 = 1,430.58/x
3. Step 3: Cross multiply
   2,216.69x = 3,059.33 × 1,430.58
4. Step 4: Simplify right side
   2,216.69x = 4,376,616.31
5. Step 5: Solve for x
   x = 4,376,616.31/2,216.69
6. Step 6: Final answer
   x = 1,974.39