Finding the Fourth Proportional to 1,540.62, 2,311.67 and 1,523.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,540.62 : 2,311.67 = 1,523.61 : x
2. Step 2: Convert to fraction form
   1,540.62/2,311.67 = 1,523.61/x
3. Step 3: Cross multiply
   1,540.62x = 2,311.67 × 1,523.61
4. Step 4: Simplify right side
   1,540.62x = 3,522,087.34
5. Step 5: Solve for x
   x = 3,522,087.34/1,540.62
6. Step 6: Final answer
   x = 2,286.15