Finding the Fourth Proportional to 1,399.55, 1,933.35 and 1,325.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399.55 : 1,933.35 = 1,325.74 : x
2. Step 2: Convert to fraction form
   1,399.55/1,933.35 = 1,325.74/x
3. Step 3: Cross multiply
   1,399.55x = 1,933.35 × 1,325.74
4. Step 4: Simplify right side
   1,399.55x = 2,563,119.43
5. Step 5: Solve for x
   x = 2,563,119.43/1,399.55
6. Step 6: Final answer
   x = 1,831.39