Finding the Fourth Proportional to 5,490.64, 8,233.89 and 1,979.71

Step by Step Solution

1. Step 1: Write the proportion equation
   5,490.64 : 8,233.89 = 1,979.71 : x
2. Step 2: Convert to fraction form
   5,490.64/8,233.89 = 1,979.71/x
3. Step 3: Cross multiply
   5,490.64x = 8,233.89 × 1,979.71
4. Step 4: Simplify right side
   5,490.64x = 16,300,714.37
5. Step 5: Solve for x
   x = 16,300,714.37/5,490.64
6. Step 6: Final answer
   x = 2,968.82