Finding the Fourth Proportional to 1,673.98, 2,510.42 and 1,212.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,673.98 : 2,510.42 = 1,212.82 : x
2. Step 2: Convert to fraction form
   1,673.98/2,510.42 = 1,212.82/x
3. Step 3: Cross multiply
   1,673.98x = 2,510.42 × 1,212.82
4. Step 4: Simplify right side
   1,673.98x = 3,044,687.58
5. Step 5: Solve for x
   x = 3,044,687.58/1,673.98
6. Step 6: Final answer
   x = 1,818.83