Finding the Fourth Proportional to 3,315.82, 4,974.16 and 1,123.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,315.82 : 4,974.16 = 1,123.96 : x
2. Step 2: Convert to fraction form
   3,315.82/4,974.16 = 1,123.96/x
3. Step 3: Cross multiply
   3,315.82x = 4,974.16 × 1,123.96
4. Step 4: Simplify right side
   3,315.82x = 5,590,756.87
5. Step 5: Solve for x
   x = 5,590,756.87/3,315.82
6. Step 6: Final answer
   x = 1,686.09