Finding the Fourth Proportional to 3,679.31, 5,077.38 and 2,000.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,679.31 : 5,077.38 = 2,000.69 : x
2. Step 2: Convert to fraction form
   3,679.31/5,077.38 = 2,000.69/x
3. Step 3: Cross multiply
   3,679.31x = 5,077.38 × 2,000.69
4. Step 4: Simplify right side
   3,679.31x = 10,158,263.39
5. Step 5: Solve for x
   x = 10,158,263.39/3,679.31
6. Step 6: Final answer
   x = 2,760.92