Finding the Fourth Proportional to 2,573.12, 3,868.32 and 2,002.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,573.12 : 3,868.32 = 2,002.88 : x
2. Step 2: Convert to fraction form
   2,573.12/3,868.32 = 2,002.88/x
3. Step 3: Cross multiply
   2,573.12x = 3,868.32 × 2,002.88
4. Step 4: Simplify right side
   2,573.12x = 7,747,780.76
5. Step 5: Solve for x
   x = 7,747,780.76/2,573.12
6. Step 6: Final answer
   x = 3,011.05