Finding the Fourth Proportional to 7,147.54, 10,720.00 and 2,986.43

Step by Step Solution

1. Step 1: Write the proportion equation
   7,147.54 : 10,720.00 = 2,986.43 : x
2. Step 2: Convert to fraction form
   7,147.54/10,720.00 = 2,986.43/x
3. Step 3: Cross multiply
   7,147.54x = 10,720.00 × 2,986.43
4. Step 4: Simplify right side
   7,147.54x = 32,014,538.31
5. Step 5: Solve for x
   x = 32,014,538.31/7,147.54
6. Step 6: Final answer
   x = 4,479.10