Finding the Fourth Proportional to 2,047.14, 3,071.78 and 1,123.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,047.14 : 3,071.78 = 1,123.14 : x
2. Step 2: Convert to fraction form
   2,047.14/3,071.78 = 1,123.14/x
3. Step 3: Cross multiply
   2,047.14x = 3,071.78 × 1,123.14
4. Step 4: Simplify right side
   2,047.14x = 3,450,038.99
5. Step 5: Solve for x
   x = 3,450,038.99/2,047.14
6. Step 6: Final answer
   x = 1,685.30