Finding the Fourth Proportional to 2,624.04, 3,938.49 and 1,326.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,624.04 : 3,938.49 = 1,326.42 : x
2. Step 2: Convert to fraction form
   2,624.04/3,938.49 = 1,326.42/x
3. Step 3: Cross multiply
   2,624.04x = 3,938.49 × 1,326.42
4. Step 4: Simplify right side
   2,624.04x = 5,224,091.91
5. Step 5: Solve for x
   x = 5,224,091.91/2,624.04
6. Step 6: Final answer
   x = 1,990.86