Finding the Fourth Proportional to 2,648.23, 3,976.58 and 2,185.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648.23 : 3,976.58 = 2,185.00 : x
2. Step 2: Convert to fraction form
   2,648.23/3,976.58 = 2,185.00/x
3. Step 3: Cross multiply
   2,648.23x = 3,976.58 × 2,185.00
4. Step 4: Simplify right side
   2,648.23x = 8,688,822.82
5. Step 5: Solve for x
   x = 8,688,822.82/2,648.23
6. Step 6: Final answer
   x = 3,281.00