Finding the Fourth Proportional to 2,123.85, 3,188.51 and 1,150.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.85 : 3,188.51 = 1,150.64 : x
2. Step 2: Convert to fraction form
   2,123.85/3,188.51 = 1,150.64/x
3. Step 3: Cross multiply
   2,123.85x = 3,188.51 × 1,150.64
4. Step 4: Simplify right side
   2,123.85x = 3,668,821.72
5. Step 5: Solve for x
   x = 3,668,821.72/2,123.85
6. Step 6: Final answer
   x = 1,727.44