Finding the Fourth Proportional to 2,112.82, 3,169.67 and 651.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112.82 : 3,169.67 = 651.94 : x
2. Step 2: Convert to fraction form
   2,112.82/3,169.67 = 651.94/x
3. Step 3: Cross multiply
   2,112.82x = 3,169.67 × 651.94
4. Step 4: Simplify right side
   2,112.82x = 2,066,434.66
5. Step 5: Solve for x
   x = 2,066,434.66/2,112.82
6. Step 6: Final answer
   x = 978.05