Finding the Fourth Proportional to 5,683.72, 7,843.52 and 3,984.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,683.72 : 7,843.52 = 3,984.72 : x
2. Step 2: Convert to fraction form
   5,683.72/7,843.52 = 3,984.72/x
3. Step 3: Cross multiply
   5,683.72x = 7,843.52 × 3,984.72
4. Step 4: Simplify right side
   5,683.72x = 31,254,231.01
5. Step 5: Solve for x
   x = 31,254,231.01/5,683.72
6. Step 6: Final answer
   x = 5,498.90