Finding the Fourth Proportional to 2,123.96, 3,187.70 and 1,084.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.96 : 3,187.70 = 1,084.73 : x
2. Step 2: Convert to fraction form
   2,123.96/3,187.70 = 1,084.73/x
3. Step 3: Cross multiply
   2,123.96x = 3,187.70 × 1,084.73
4. Step 4: Simplify right side
   2,123.96x = 3,457,793.82
5. Step 5: Solve for x
   x = 3,457,793.82/2,123.96
6. Step 6: Final answer
   x = 1,627.99