Finding the Fourth Proportional to 2,630.72, 3,630.49 and 1,511.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,630.72 : 3,630.49 = 1,511.90 : x
2. Step 2: Convert to fraction form
   2,630.72/3,630.49 = 1,511.90/x
3. Step 3: Cross multiply
   2,630.72x = 3,630.49 × 1,511.90
4. Step 4: Simplify right side
   2,630.72x = 5,488,912.12
5. Step 5: Solve for x
   x = 5,488,912.12/2,630.72
6. Step 6: Final answer
   x = 2,086.47