Finding the Fourth Proportional to 2,181.94, 3,011.78 and 1,622.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,181.94 : 3,011.78 = 1,622.22 : x
2. Step 2: Convert to fraction form
   2,181.94/3,011.78 = 1,622.22/x
3. Step 3: Cross multiply
   2,181.94x = 3,011.78 × 1,622.22
4. Step 4: Simplify right side
   2,181.94x = 4,885,769.75
5. Step 5: Solve for x
   x = 4,885,769.75/2,181.94
6. Step 6: Final answer
   x = 2,239.19