Finding the Fourth Proportional to 3,225.16, 4,839.90 and 2,071.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,225.16 : 4,839.90 = 2,071.72 : x
2. Step 2: Convert to fraction form
   3,225.16/4,839.90 = 2,071.72/x
3. Step 3: Cross multiply
   3,225.16x = 4,839.90 × 2,071.72
4. Step 4: Simplify right side
   3,225.16x = 10,026,917.63
5. Step 5: Solve for x
   x = 10,026,917.63/3,225.16
6. Step 6: Final answer
   x = 3,108.97