Finding the Fourth Proportional to 3,581.82, 5,373.54 and 1,939.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,581.82 : 5,373.54 = 1,939.86 : x
2. Step 2: Convert to fraction form
   3,581.82/5,373.54 = 1,939.86/x
3. Step 3: Cross multiply
   3,581.82x = 5,373.54 × 1,939.86
4. Step 4: Simplify right side
   3,581.82x = 10,423,915.30
5. Step 5: Solve for x
   x = 10,423,915.30/3,581.82
6. Step 6: Final answer
   x = 2,910.23