Finding the Fourth Proportional to 2,164.80, 2,981.46 and 2,000.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,164.80 : 2,981.46 = 2,000.76 : x
2. Step 2: Convert to fraction form
   2,164.80/2,981.46 = 2,000.76/x
3. Step 3: Cross multiply
   2,164.80x = 2,981.46 × 2,000.76
4. Step 4: Simplify right side
   2,164.80x = 5,965,185.91
5. Step 5: Solve for x
   x = 5,965,185.91/2,164.80
6. Step 6: Final answer
   x = 2,755.54