Finding the Fourth Proportional to 1,931.27, 2,665.09 and 1,134.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,931.27 : 2,665.09 = 1,134.58 : x
2. Step 2: Convert to fraction form
   1,931.27/2,665.09 = 1,134.58/x
3. Step 3: Cross multiply
   1,931.27x = 2,665.09 × 1,134.58
4. Step 4: Simplify right side
   1,931.27x = 3,023,757.81
5. Step 5: Solve for x
   x = 3,023,757.81/1,931.27
6. Step 6: Final answer
   x = 1,565.68