Finding the Fourth Proportional to 2,078.01, 3,118.56 and 983.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078.01 : 3,118.56 = 983.15 : x
2. Step 2: Convert to fraction form
   2,078.01/3,118.56 = 983.15/x
3. Step 3: Cross multiply
   2,078.01x = 3,118.56 × 983.15
4. Step 4: Simplify right side
   2,078.01x = 3,065,996.67
5. Step 5: Solve for x
   x = 3,065,996.67/2,078.01
6. Step 6: Final answer
   x = 1,475.45