Finding the Fourth Proportional to 2,970.47, 4,099.39 and 1,711.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,970.47 : 4,099.39 = 1,711.72 : x
2. Step 2: Convert to fraction form
   2,970.47/4,099.39 = 1,711.72/x
3. Step 3: Cross multiply
   2,970.47x = 4,099.39 × 1,711.72
4. Step 4: Simplify right side
   2,970.47x = 7,016,995.27
5. Step 5: Solve for x
   x = 7,016,995.27/2,970.47
6. Step 6: Final answer
   x = 2,362.25