Finding the Fourth Proportional to 2,733.76, 4,100.66 and 978.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,733.76 : 4,100.66 = 978.83 : x
2. Step 2: Convert to fraction form
   2,733.76/4,100.66 = 978.83/x
3. Step 3: Cross multiply
   2,733.76x = 4,100.66 × 978.83
4. Step 4: Simplify right side
   2,733.76x = 4,013,842.68
5. Step 5: Solve for x
   x = 4,013,842.68/2,733.76
6. Step 6: Final answer
   x = 1,468.25