Finding the Fourth Proportional to 2,003.40, 2,768.58 and 2,003.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.40 : 2,768.58 = 2,003.40 : x
2. Step 2: Convert to fraction form
   2,003.40/2,768.58 = 2,003.40/x
3. Step 3: Cross multiply
   2,003.40x = 2,768.58 × 2,003.40
4. Step 4: Simplify right side
   2,003.40x = 5,546,573.17
5. Step 5: Solve for x
   x = 5,546,573.17/2,003.40
6. Step 6: Final answer
   x = 2,768.58