Finding the Fourth Proportional to 2,082.35, 3,123.50 and 621.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,082.35 : 3,123.50 = 621.51 : x
2. Step 2: Convert to fraction form
   2,082.35/3,123.50 = 621.51/x
3. Step 3: Cross multiply
   2,082.35x = 3,123.50 × 621.51
4. Step 4: Simplify right side
   2,082.35x = 1,941,283.38
5. Step 5: Solve for x
   x = 1,941,283.38/2,082.35
6. Step 6: Final answer
   x = 932.26