Finding the Fourth Proportional to 2,123.88, 3,185.21 and 736.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.88 : 3,185.21 = 736.86 : x
2. Step 2: Convert to fraction form
   2,123.88/3,185.21 = 736.86/x
3. Step 3: Cross multiply
   2,123.88x = 3,185.21 × 736.86
4. Step 4: Simplify right side
   2,123.88x = 2,347,050.16
5. Step 5: Solve for x
   x = 2,347,050.16/2,123.88
6. Step 6: Final answer
   x = 1,105.08