Finding the Fourth Proportional to 2,082.33, 3,123.53 and 912.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,082.33 : 3,123.53 = 912.09 : x
2. Step 2: Convert to fraction form
   2,082.33/3,123.53 = 912.09/x
3. Step 3: Cross multiply
   2,082.33x = 3,123.53 × 912.09
4. Step 4: Simplify right side
   2,082.33x = 2,848,935.92
5. Step 5: Solve for x
   x = 2,848,935.92/2,082.33
6. Step 6: Final answer
   x = 1,368.15