Finding the Fourth Proportional to 2,645.87, 3,962.72 and 1,410.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645.87 : 3,962.72 = 1,410.21 : x
2. Step 2: Convert to fraction form
   2,645.87/3,962.72 = 1,410.21/x
3. Step 3: Cross multiply
   2,645.87x = 3,962.72 × 1,410.21
4. Step 4: Simplify right side
   2,645.87x = 5,588,270.90
5. Step 5: Solve for x
   x = 5,588,270.90/2,645.87
6. Step 6: Final answer
   x = 2,112.08