Finding the Fourth Proportional to 2,133.19, 2,928.78 and 2,003.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,133.19 : 2,928.78 = 2,003.59 : x
2. Step 2: Convert to fraction form
   2,133.19/2,928.78 = 2,003.59/x
3. Step 3: Cross multiply
   2,133.19x = 2,928.78 × 2,003.59
4. Step 4: Simplify right side
   2,133.19x = 5,868,074.32
5. Step 5: Solve for x
   x = 5,868,074.32/2,133.19
6. Step 6: Final answer
   x = 2,750.84