Finding the Fourth Proportional to 2,520.06, 3,485.43 and 2,257.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,520.06 : 3,485.43 = 2,257.98 : x
2. Step 2: Convert to fraction form
   2,520.06/3,485.43 = 2,257.98/x
3. Step 3: Cross multiply
   2,520.06x = 3,485.43 × 2,257.98
4. Step 4: Simplify right side
   2,520.06x = 7,870,031.23
5. Step 5: Solve for x
   x = 7,870,031.23/2,520.06
6. Step 6: Final answer
   x = 3,122.95