Finding the Fourth Proportional to 2,586.28, 3,572.72 and 2,004.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,586.28 : 3,572.72 = 2,004.32 : x
2. Step 2: Convert to fraction form
   2,586.28/3,572.72 = 2,004.32/x
3. Step 3: Cross multiply
   2,586.28x = 3,572.72 × 2,004.32
4. Step 4: Simplify right side
   2,586.28x = 7,160,874.15
5. Step 5: Solve for x
   x = 7,160,874.15/2,586.28
6. Step 6: Final answer
   x = 2,768.79