Finding the Fourth Proportional to 3,684.72, 5,554.86 and 3,434.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,684.72 : 5,554.86 = 3,434.16 : x
2. Step 2: Convert to fraction form
   3,684.72/5,554.86 = 3,434.16/x
3. Step 3: Cross multiply
   3,684.72x = 5,554.86 × 3,434.16
4. Step 4: Simplify right side
   3,684.72x = 19,076,278.02
5. Step 5: Solve for x
   x = 19,076,278.02/3,684.72
6. Step 6: Final answer
   x = 5,177.13