Finding the Fourth Proportional to 2,979.72, 4,111.98 and 1,635.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,979.72 : 4,111.98 = 1,635.33 : x
2. Step 2: Convert to fraction form
   2,979.72/4,111.98 = 1,635.33/x
3. Step 3: Cross multiply
   2,979.72x = 4,111.98 × 1,635.33
4. Step 4: Simplify right side
   2,979.72x = 6,724,444.25
5. Step 5: Solve for x
   x = 6,724,444.25/2,979.72
6. Step 6: Final answer
   x = 2,256.74