Finding the Fourth Proportional to 2,733.79, 4,100.67 and 978.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,733.79 : 4,100.67 = 978.73 : x
2. Step 2: Convert to fraction form
   2,733.79/4,100.67 = 978.73/x
3. Step 3: Cross multiply
   2,733.79x = 4,100.67 × 978.73
4. Step 4: Simplify right side
   2,733.79x = 4,013,448.75
5. Step 5: Solve for x
   x = 4,013,448.75/2,733.79
6. Step 6: Final answer
   x = 1,468.09