Finding the Fourth Proportional to 2,011.82, 2,772.15 and 1,617.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,011.82 : 2,772.15 = 1,617.26 : x
2. Step 2: Convert to fraction form
   2,011.82/2,772.15 = 1,617.26/x
3. Step 3: Cross multiply
   2,011.82x = 2,772.15 × 1,617.26
4. Step 4: Simplify right side
   2,011.82x = 4,483,287.31
5. Step 5: Solve for x
   x = 4,483,287.31/2,011.82
6. Step 6: Final answer
   x = 2,228.47