Finding the Fourth Proportional to 3,893.29, 5,373.88 and 3,694.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,893.29 : 5,373.88 = 3,694.86 : x
2. Step 2: Convert to fraction form
   3,893.29/5,373.88 = 3,694.86/x
3. Step 3: Cross multiply
   3,893.29x = 5,373.88 × 3,694.86
4. Step 4: Simplify right side
   3,893.29x = 19,855,725.02
5. Step 5: Solve for x
   x = 19,855,725.02/3,893.29
6. Step 6: Final answer
   x = 5,099.99