Finding the Fourth Proportional to 5,229.30, 7,216.04 and 2,870.98

Step by Step Solution

1. Step 1: Write the proportion equation
   5,229.30 : 7,216.04 = 2,870.98 : x
2. Step 2: Convert to fraction form
   5,229.30/7,216.04 = 2,870.98/x
3. Step 3: Cross multiply
   5,229.30x = 7,216.04 × 2,870.98
4. Step 4: Simplify right side
   5,229.30x = 20,717,106.52
5. Step 5: Solve for x
   x = 20,717,106.52/5,229.30
6. Step 6: Final answer
   x = 3,961.74