Finding the Fourth Proportional to 2,642.85, 3,647.15 and 1,447.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,642.85 : 3,647.15 = 1,447.82 : x
2. Step 2: Convert to fraction form
   2,642.85/3,647.15 = 1,447.82/x
3. Step 3: Cross multiply
   2,642.85x = 3,647.15 × 1,447.82
4. Step 4: Simplify right side
   2,642.85x = 5,280,416.71
5. Step 5: Solve for x
   x = 5,280,416.71/2,642.85
6. Step 6: Final answer
   x = 1,998.00