Finding the Fourth Proportional to 3,069.90, 4,606.56 and 1,123.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,069.90 : 4,606.56 = 1,123.38 : x
2. Step 2: Convert to fraction form
   3,069.90/4,606.56 = 1,123.38/x
3. Step 3: Cross multiply
   3,069.90x = 4,606.56 × 1,123.38
4. Step 4: Simplify right side
   3,069.90x = 5,174,917.37
5. Step 5: Solve for x
   x = 5,174,917.37/3,069.90
6. Step 6: Final answer
   x = 1,685.70