Finding the Fourth Proportional to 2,939.72, 4,056.89 and 1,613.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,939.72 : 4,056.89 = 1,613.41 : x
2. Step 2: Convert to fraction form
   2,939.72/4,056.89 = 1,613.41/x
3. Step 3: Cross multiply
   2,939.72x = 4,056.89 × 1,613.41
4. Step 4: Simplify right side
   2,939.72x = 6,545,418.83
5. Step 5: Solve for x
   x = 6,545,418.83/2,939.72
6. Step 6: Final answer
   x = 2,226.55