Finding the Fourth Proportional to 2,123.73, 3,185.73 and 662.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.73 : 3,185.73 = 662.76 : x
2. Step 2: Convert to fraction form
   2,123.73/3,185.73 = 662.76/x
3. Step 3: Cross multiply
   2,123.73x = 3,185.73 × 662.76
4. Step 4: Simplify right side
   2,123.73x = 2,111,374.41
5. Step 5: Solve for x
   x = 2,111,374.41/2,123.73
6. Step 6: Final answer
   x = 994.18