Finding the Fourth Proportional to 1,931.09, 2,664.72 and 1,134.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,931.09 : 2,664.72 = 1,134.35 : x
2. Step 2: Convert to fraction form
   1,931.09/2,664.72 = 1,134.35/x
3. Step 3: Cross multiply
   1,931.09x = 2,664.72 × 1,134.35
4. Step 4: Simplify right side
   1,931.09x = 3,022,711.81
5. Step 5: Solve for x
   x = 3,022,711.81/1,931.09
6. Step 6: Final answer
   x = 1,565.29