Finding the Fourth Proportional to 2,079.25, 3,120.23 and 983.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,079.25 : 3,120.23 = 983.72 : x
2. Step 2: Convert to fraction form
   2,079.25/3,120.23 = 983.72/x
3. Step 3: Cross multiply
   2,079.25x = 3,120.23 × 983.72
4. Step 4: Simplify right side
   2,079.25x = 3,069,442.92
5. Step 5: Solve for x
   x = 3,069,442.92/2,079.25
6. Step 6: Final answer
   x = 1,476.23