Finding the Fourth Proportional to 2,528.16, 3,485.97 and 2,054.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,528.16 : 3,485.97 = 2,054.76 : x
2. Step 2: Convert to fraction form
   2,528.16/3,485.97 = 2,054.76/x
3. Step 3: Cross multiply
   2,528.16x = 3,485.97 × 2,054.76
4. Step 4: Simplify right side
   2,528.16x = 7,162,831.72
5. Step 5: Solve for x
   x = 7,162,831.72/2,528.16
6. Step 6: Final answer
   x = 2,833.22