Finding the Fourth Proportional to 2,112.53, 3,164.84 and 1,768.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112.53 : 3,164.84 = 1,768.07 : x
2. Step 2: Convert to fraction form
   2,112.53/3,164.84 = 1,768.07/x
3. Step 3: Cross multiply
   2,112.53x = 3,164.84 × 1,768.07
4. Step 4: Simplify right side
   2,112.53x = 5,595,664.36
5. Step 5: Solve for x
   x = 5,595,664.36/2,112.53
6. Step 6: Final answer
   x = 2,648.80