Finding the Fourth Proportional to 2,422.91, 3,636.50 and 1,939.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,422.91 : 3,636.50 = 1,939.14 : x
2. Step 2: Convert to fraction form
   2,422.91/3,636.50 = 1,939.14/x
3. Step 3: Cross multiply
   2,422.91x = 3,636.50 × 1,939.14
4. Step 4: Simplify right side
   2,422.91x = 7,051,672.91
5. Step 5: Solve for x
   x = 7,051,672.91/2,422.91
6. Step 6: Final answer
   x = 2,910.41