Finding the Fourth Proportional to 1,540.56, 2,127.69 and 1,423.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,540.56 : 2,127.69 = 1,423.92 : x
2. Step 2: Convert to fraction form
   1,540.56/2,127.69 = 1,423.92/x
3. Step 3: Cross multiply
   1,540.56x = 2,127.69 × 1,423.92
4. Step 4: Simplify right side
   1,540.56x = 3,029,660.34
5. Step 5: Solve for x
   x = 3,029,660.34/1,540.56
6. Step 6: Final answer
   x = 1,966.60