Finding the Fourth Proportional to 2,828.52, 3,900.42 and 1,895.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,828.52 : 3,900.42 = 1,895.40 : x
2. Step 2: Convert to fraction form
   2,828.52/3,900.42 = 1,895.40/x
3. Step 3: Cross multiply
   2,828.52x = 3,900.42 × 1,895.40
4. Step 4: Simplify right side
   2,828.52x = 7,392,856.07
5. Step 5: Solve for x
   x = 7,392,856.07/2,828.52
6. Step 6: Final answer
   x = 2,613.68