Finding the Fourth Proportional to 6,910.61, 10,364.50 and 1,979.33

Step by Step Solution

1. Step 1: Write the proportion equation
   6,910.61 : 10,364.50 = 1,979.33 : x
2. Step 2: Convert to fraction form
   6,910.61/10,364.50 = 1,979.33/x
3. Step 3: Cross multiply
   6,910.61x = 10,364.50 × 1,979.33
4. Step 4: Simplify right side
   6,910.61x = 20,514,755.89
5. Step 5: Solve for x
   x = 20,514,755.89/6,910.61
6. Step 6: Final answer
   x = 2,968.59