Finding the Fourth Proportional to 1,931.75, 2,665.86 and 1,185.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,931.75 : 2,665.86 = 1,185.27 : x
2. Step 2: Convert to fraction form
   1,931.75/2,665.86 = 1,185.27/x
3. Step 3: Cross multiply
   1,931.75x = 2,665.86 × 1,185.27
4. Step 4: Simplify right side
   1,931.75x = 3,159,763.88
5. Step 5: Solve for x
   x = 3,159,763.88/1,931.75
6. Step 6: Final answer
   x = 1,635.70