Finding the Fourth Proportional to 3,679.30, 5,077.47 and 2,000.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,679.30 : 5,077.47 = 2,000.72 : x
2. Step 2: Convert to fraction form
   3,679.30/5,077.47 = 2,000.72/x
3. Step 3: Cross multiply
   3,679.30x = 5,077.47 × 2,000.72
4. Step 4: Simplify right side
   3,679.30x = 10,158,584.81
5. Step 5: Solve for x
   x = 10,158,584.81/3,679.30
6. Step 6: Final answer
   x = 2,761.01