Finding the Fourth Proportional to 2,072.27, 3,110.69 and 1,031.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,072.27 : 3,110.69 = 1,031.99 : x
2. Step 2: Convert to fraction form
   2,072.27/3,110.69 = 1,031.99/x
3. Step 3: Cross multiply
   2,072.27x = 3,110.69 × 1,031.99
4. Step 4: Simplify right side
   2,072.27x = 3,210,200.97
5. Step 5: Solve for x
   x = 3,210,200.97/2,072.27
6. Step 6: Final answer
   x = 1,549.12