Finding the Fourth Proportional to 1,635.85, 2,443.37 and 1,405.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,635.85 : 2,443.37 = 1,405.41 : x
2. Step 2: Convert to fraction form
   1,635.85/2,443.37 = 1,405.41/x
3. Step 3: Cross multiply
   1,635.85x = 2,443.37 × 1,405.41
4. Step 4: Simplify right side
   1,635.85x = 3,433,936.63
5. Step 5: Solve for x
   x = 3,433,936.63/1,635.85
6. Step 6: Final answer
   x = 2,099.18