Finding the Fourth Proportional to 5,381.71, 8,072.71 and 1,683.86

Step by Step Solution

1. Step 1: Write the proportion equation
   5,381.71 : 8,072.71 = 1,683.86 : x
2. Step 2: Convert to fraction form
   5,381.71/8,072.71 = 1,683.86/x
3. Step 3: Cross multiply
   5,381.71x = 8,072.71 × 1,683.86
4. Step 4: Simplify right side
   5,381.71x = 13,593,268.89
5. Step 5: Solve for x
   x = 13,593,268.89/5,381.71
6. Step 6: Final answer
   x = 2,525.83