Finding the Fourth Proportional to 2,069.04, 2,856.24 and 1,405.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,069.04 : 2,856.24 = 1,405.92 : x
2. Step 2: Convert to fraction form
   2,069.04/2,856.24 = 1,405.92/x
3. Step 3: Cross multiply
   2,069.04x = 2,856.24 × 1,405.92
4. Step 4: Simplify right side
   2,069.04x = 4,015,644.94
5. Step 5: Solve for x
   x = 4,015,644.94/2,069.04
6. Step 6: Final answer
   x = 1,940.83