Finding the Fourth Proportional to 2,079.73, 3,118.73 and 846.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,079.73 : 3,118.73 = 846.30 : x
2. Step 2: Convert to fraction form
   2,079.73/3,118.73 = 846.30/x
3. Step 3: Cross multiply
   2,079.73x = 3,118.73 × 846.30
4. Step 4: Simplify right side
   2,079.73x = 2,639,373.50
5. Step 5: Solve for x
   x = 2,639,373.50/2,079.73
6. Step 6: Final answer
   x = 1,269.10