Finding the Fourth Proportional to 2,483.82, 3,726.07 and 840.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,483.82 : 3,726.07 = 840.53 : x
2. Step 2: Convert to fraction form
   2,483.82/3,726.07 = 840.53/x
3. Step 3: Cross multiply
   2,483.82x = 3,726.07 × 840.53
4. Step 4: Simplify right side
   2,483.82x = 3,131,880.83
5. Step 5: Solve for x
   x = 3,131,880.83/2,483.82
6. Step 6: Final answer
   x = 1,260.91