Finding the Fourth Proportional to 2,016.30, 2,793.70 and 1,972.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.30 : 2,793.70 = 1,972.56 : x
2. Step 2: Convert to fraction form
   2,016.30/2,793.70 = 1,972.56/x
3. Step 3: Cross multiply
   2,016.30x = 2,793.70 × 1,972.56
4. Step 4: Simplify right side
   2,016.30x = 5,510,740.87
5. Step 5: Solve for x
   x = 5,510,740.87/2,016.30
6. Step 6: Final answer
   x = 2,733.10