Finding the Fourth Proportional to 3,984.31, 5,970.22 and 2,520.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,984.31 : 5,970.22 = 2,520.37 : x
2. Step 2: Convert to fraction form
   3,984.31/5,970.22 = 2,520.37/x
3. Step 3: Cross multiply
   3,984.31x = 5,970.22 × 2,520.37
4. Step 4: Simplify right side
   3,984.31x = 15,047,158.07
5. Step 5: Solve for x
   x = 15,047,158.07/3,984.31
6. Step 6: Final answer
   x = 3,776.60