Finding the Fourth Proportional to 2,192.56, 3,285.58 and 1,805.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,192.56 : 3,285.58 = 1,805.30 : x
2. Step 2: Convert to fraction form
   2,192.56/3,285.58 = 1,805.30/x
3. Step 3: Cross multiply
   2,192.56x = 3,285.58 × 1,805.30
4. Step 4: Simplify right side
   2,192.56x = 5,931,457.57
5. Step 5: Solve for x
   x = 5,931,457.57/2,192.56
6. Step 6: Final answer
   x = 2,705.27