Finding the Fourth Proportional to 1,456.52, 2,184.78 and 839.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456.52 : 2,184.78 = 839.83 : x
2. Step 2: Convert to fraction form
   1,456.52/2,184.78 = 839.83/x
3. Step 3: Cross multiply
   1,456.52x = 2,184.78 × 839.83
4. Step 4: Simplify right side
   1,456.52x = 1,834,843.79
5. Step 5: Solve for x
   x = 1,834,843.79/1,456.52
6. Step 6: Final answer
   x = 1,259.75