Finding the Fourth Proportional to 2,123.92, 3,185.16 and 736.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.92 : 3,185.16 = 736.89 : x
2. Step 2: Convert to fraction form
   2,123.92/3,185.16 = 736.89/x
3. Step 3: Cross multiply
   2,123.92x = 3,185.16 × 736.89
4. Step 4: Simplify right side
   2,123.92x = 2,347,112.55
5. Step 5: Solve for x
   x = 2,347,112.55/2,123.92
6. Step 6: Final answer
   x = 1,105.09