Finding the Fourth Proportional to 2,120.46, 3,182.52 and 1,025.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,120.46 : 3,182.52 = 1,025.60 : x
2. Step 2: Convert to fraction form
   2,120.46/3,182.52 = 1,025.60/x
3. Step 3: Cross multiply
   2,120.46x = 3,182.52 × 1,025.60
4. Step 4: Simplify right side
   2,120.46x = 3,263,976.60
5. Step 5: Solve for x
   x = 3,263,976.60/2,120.46
6. Step 6: Final answer
   x = 1,539.28