Finding the Fourth Proportional to 3,617.94, 5,419.89 and 2,053.21

Step by Step Solution

1. Step 1: Write the proportion equation
   3,617.94 : 5,419.89 = 2,053.21 : x
2. Step 2: Convert to fraction form
   3,617.94/5,419.89 = 2,053.21/x
3. Step 3: Cross multiply
   3,617.94x = 5,419.89 × 2,053.21
4. Step 4: Simplify right side
   3,617.94x = 11,128,145.25
5. Step 5: Solve for x
   x = 11,128,145.25/3,617.94
6. Step 6: Final answer
   x = 3,075.83