Finding the Fourth Proportional to 2,979.35, 4,111.82 and 1,800.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,979.35 : 4,111.82 = 1,800.39 : x
2. Step 2: Convert to fraction form
   2,979.35/4,111.82 = 1,800.39/x
3. Step 3: Cross multiply
   2,979.35x = 4,111.82 × 1,800.39
4. Step 4: Simplify right side
   2,979.35x = 7,402,879.61
5. Step 5: Solve for x
   x = 7,402,879.61/2,979.35
6. Step 6: Final answer
   x = 2,484.73