Finding the Fourth Proportional to 2,768.32, 3,814.32 and 2,021.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,768.32 : 3,814.32 = 2,021.50 : x
2. Step 2: Convert to fraction form
   2,768.32/3,814.32 = 2,021.50/x
3. Step 3: Cross multiply
   2,768.32x = 3,814.32 × 2,021.50
4. Step 4: Simplify right side
   2,768.32x = 7,710,647.88
5. Step 5: Solve for x
   x = 7,710,647.88/2,768.32
6. Step 6: Final answer
   x = 2,785.32