Finding the Fourth Proportional to 2,631.43, 3,631.25 and 1,511.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,631.43 : 3,631.25 = 1,511.57 : x
2. Step 2: Convert to fraction form
   2,631.43/3,631.25 = 1,511.57/x
3. Step 3: Cross multiply
   2,631.43x = 3,631.25 × 1,511.57
4. Step 4: Simplify right side
   2,631.43x = 5,488,890.08
5. Step 5: Solve for x
   x = 5,488,890.08/2,631.43
6. Step 6: Final answer
   x = 2,085.90