Finding the Fourth Proportional to 1,786.59, 2,675.22 and 1,438.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,786.59 : 2,675.22 = 1,438.02 : x
2. Step 2: Convert to fraction form
   1,786.59/2,675.22 = 1,438.02/x
3. Step 3: Cross multiply
   1,786.59x = 2,675.22 × 1,438.02
4. Step 4: Simplify right side
   1,786.59x = 3,847,019.86
5. Step 5: Solve for x
   x = 3,847,019.86/1,786.59
6. Step 6: Final answer
   x = 2,153.28