Finding the Fourth Proportional to 1,395.89, 2,096.27 and 1,286.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.89 : 2,096.27 = 1,286.00 : x
2. Step 2: Convert to fraction form
   1,395.89/2,096.27 = 1,286.00/x
3. Step 3: Cross multiply
   1,395.89x = 2,096.27 × 1,286.00
4. Step 4: Simplify right side
   1,395.89x = 2,695,811.68
5. Step 5: Solve for x
   x = 2,695,811.68/1,395.89
6. Step 6: Final answer
   x = 1,931.25