Finding the Fourth Proportional to 2,631.18, 3,630.59 and 1,511.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,631.18 : 3,630.59 = 1,511.88 : x
2. Step 2: Convert to fraction form
   2,631.18/3,630.59 = 1,511.88/x
3. Step 3: Cross multiply
   2,631.18x = 3,630.59 × 1,511.88
4. Step 4: Simplify right side
   2,631.18x = 5,489,009.20
5. Step 5: Solve for x
   x = 5,489,009.20/2,631.18
6. Step 6: Final answer
   x = 2,086.14