Finding the Fourth Proportional to 2,636.08, 3,961.31 and 1,404.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.08 : 3,961.31 = 1,404.37 : x
2. Step 2: Convert to fraction form
   2,636.08/3,961.31 = 1,404.37/x
3. Step 3: Cross multiply
   2,636.08x = 3,961.31 × 1,404.37
4. Step 4: Simplify right side
   2,636.08x = 5,563,137.90
5. Step 5: Solve for x
   x = 5,563,137.90/2,636.08
6. Step 6: Final answer
   x = 2,110.38