Finding the Fourth Proportional to 2,113.38, 2,915.73 and 1,327.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113.38 : 2,915.73 = 1,327.86 : x
2. Step 2: Convert to fraction form
   2,113.38/2,915.73 = 1,327.86/x
3. Step 3: Cross multiply
   2,113.38x = 2,915.73 × 1,327.86
4. Step 4: Simplify right side
   2,113.38x = 3,871,681.24
5. Step 5: Solve for x
   x = 3,871,681.24/2,113.38
6. Step 6: Final answer
   x = 1,831.99