Finding the Fourth Proportional to 2,216.34, 3,058.92 and 1,284.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,216.34 : 3,058.92 = 1,284.84 : x
2. Step 2: Convert to fraction form
   2,216.34/3,058.92 = 1,284.84/x
3. Step 3: Cross multiply
   2,216.34x = 3,058.92 × 1,284.84
4. Step 4: Simplify right side
   2,216.34x = 3,930,222.77
5. Step 5: Solve for x
   x = 3,930,222.77/2,216.34
6. Step 6: Final answer
   x = 1,773.29