Finding the Fourth Proportional to 2,637, 3,956.64 and 1,404.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,637 : 3,956.64 = 1,404.06 : x
2. Step 2: Convert to fraction form
   2,637/3,956.64 = 1,404.06/x
3. Step 3: Cross multiply
   2,637x = 3,956.64 × 1,404.06
4. Step 4: Simplify right side
   2,637x = 5,555,359.96
5. Step 5: Solve for x
   x = 5,555,359.96/2,637
6. Step 6: Final answer
   x = 2,106.70