Finding the Fourth Proportional to 1,827.83, 2,739.47 and 839.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,827.83 : 2,739.47 = 839.59 : x
2. Step 2: Convert to fraction form
   1,827.83/2,739.47 = 839.59/x
3. Step 3: Cross multiply
   1,827.83x = 2,739.47 × 839.59
4. Step 4: Simplify right side
   1,827.83x = 2,300,031.89
5. Step 5: Solve for x
   x = 2,300,031.89/1,827.83
6. Step 6: Final answer
   x = 1,258.34