Finding the Fourth Proportional to 2,216.15, 3,057.73 and 1,429.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,216.15 : 3,057.73 = 1,429.25 : x
2. Step 2: Convert to fraction form
   2,216.15/3,057.73 = 1,429.25/x
3. Step 3: Cross multiply
   2,216.15x = 3,057.73 × 1,429.25
4. Step 4: Simplify right side
   2,216.15x = 4,370,260.60
5. Step 5: Solve for x
   x = 4,370,260.60/2,216.15
6. Step 6: Final answer
   x = 1,972.01