Finding the Fourth Proportional to 2,168.80, 3,250.64 and 1,784.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,168.80 : 3,250.64 = 1,784.80 : x
2. Step 2: Convert to fraction form
   2,168.80/3,250.64 = 1,784.80/x
3. Step 3: Cross multiply
   2,168.80x = 3,250.64 × 1,784.80
4. Step 4: Simplify right side
   2,168.80x = 5,801,742.27
5. Step 5: Solve for x
   x = 5,801,742.27/2,168.80
6. Step 6: Final answer
   x = 2,675.09