Finding the Fourth Proportional to 2,191.04, 3,282.24 and 1,643.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.04 : 3,282.24 = 1,643.84 : x
2. Step 2: Convert to fraction form
   2,191.04/3,282.24 = 1,643.84/x
3. Step 3: Cross multiply
   2,191.04x = 3,282.24 × 1,643.84
4. Step 4: Simplify right side
   2,191.04x = 5,395,477.40
5. Step 5: Solve for x
   x = 5,395,477.40/2,191.04
6. Step 6: Final answer
   x = 2,462.52