Finding the Fourth Proportional to 2,979.38, 4,111.34 and 1,801.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,979.38 : 4,111.34 = 1,801.10 : x
2. Step 2: Convert to fraction form
   2,979.38/4,111.34 = 1,801.10/x
3. Step 3: Cross multiply
   2,979.38x = 4,111.34 × 1,801.10
4. Step 4: Simplify right side
   2,979.38x = 7,404,934.47
5. Step 5: Solve for x
   x = 7,404,934.47/2,979.38
6. Step 6: Final answer
   x = 2,485.39