Finding the Fourth Proportional to 2,483.30, 3,725.36 and 839.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,483.30 : 3,725.36 = 839.95 : x
2. Step 2: Convert to fraction form
   2,483.30/3,725.36 = 839.95/x
3. Step 3: Cross multiply
   2,483.30x = 3,725.36 × 839.95
4. Step 4: Simplify right side
   2,483.30x = 3,129,093.31
5. Step 5: Solve for x
   x = 3,129,093.31/2,483.30
6. Step 6: Final answer
   x = 1,260.05