Finding the Fourth Proportional to 5,470.72, 8,201.04 and 2,870.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,470.72 : 8,201.04 = 2,870.56 : x
2. Step 2: Convert to fraction form
   5,470.72/8,201.04 = 2,870.56/x
3. Step 3: Cross multiply
   5,470.72x = 8,201.04 × 2,870.56
4. Step 4: Simplify right side
   5,470.72x = 23,541,577.38
5. Step 5: Solve for x
   x = 23,541,577.38/5,470.72
6. Step 6: Final answer
   x = 4,303.20