Finding the Fourth Proportional to 2,636.58, 3,962.06 and 1,404.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.58 : 3,962.06 = 1,404.87 : x
2. Step 2: Convert to fraction form
   2,636.58/3,962.06 = 1,404.87/x
3. Step 3: Cross multiply
   2,636.58x = 3,962.06 × 1,404.87
4. Step 4: Simplify right side
   2,636.58x = 5,566,172.21
5. Step 5: Solve for x
   x = 5,566,172.21/2,636.58
6. Step 6: Final answer
   x = 2,111.13