Finding the Fourth Proportional to 5,704.98, 7,870.70 and 3,579.60

Step by Step Solution

1. Step 1: Write the proportion equation
   5,704.98 : 7,870.70 = 3,579.60 : x
2. Step 2: Convert to fraction form
   5,704.98/7,870.70 = 3,579.60/x
3. Step 3: Cross multiply
   5,704.98x = 7,870.70 × 3,579.60
4. Step 4: Simplify right side
   5,704.98x = 28,173,957.72
5. Step 5: Solve for x
   x = 28,173,957.72/5,704.98
6. Step 6: Final answer
   x = 4,938.48