Finding the Fourth Proportional to 2,376.15, 3,271.59 and 2,021.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,376.15 : 3,271.59 = 2,021.37 : x
2. Step 2: Convert to fraction form
   2,376.15/3,271.59 = 2,021.37/x
3. Step 3: Cross multiply
   2,376.15x = 3,271.59 × 2,021.37
4. Step 4: Simplify right side
   2,376.15x = 6,613,093.88
5. Step 5: Solve for x
   x = 6,613,093.88/2,376.15
6. Step 6: Final answer
   x = 2,783.11