Finding the Fourth Proportional to 2,047.06, 3,071.04 and 1,072.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,047.06 : 3,071.04 = 1,072.90 : x
2. Step 2: Convert to fraction form
   2,047.06/3,071.04 = 1,072.90/x
3. Step 3: Cross multiply
   2,047.06x = 3,071.04 × 1,072.90
4. Step 4: Simplify right side
   2,047.06x = 3,294,918.82
5. Step 5: Solve for x
   x = 3,294,918.82/2,047.06
6. Step 6: Final answer
   x = 1,609.59