Finding the Fourth Proportional to 2,636.25, 3,956.76 and 1,404.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.25 : 3,956.76 = 1,404.70 : x
2. Step 2: Convert to fraction form
   2,636.25/3,956.76 = 1,404.70/x
3. Step 3: Cross multiply
   2,636.25x = 3,956.76 × 1,404.70
4. Step 4: Simplify right side
   2,636.25x = 5,558,060.77
5. Step 5: Solve for x
   x = 5,558,060.77/2,636.25
6. Step 6: Final answer
   x = 2,108.32