Finding the Fourth Proportional to 1,359.81, 1,877.10 and 1,028.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.81 : 1,877.10 = 1,028.34 : x
2. Step 2: Convert to fraction form
   1,359.81/1,877.10 = 1,028.34/x
3. Step 3: Cross multiply
   1,359.81x = 1,877.10 × 1,028.34
4. Step 4: Simplify right side
   1,359.81x = 1,930,297.01
5. Step 5: Solve for x
   x = 1,930,297.01/1,359.81
6. Step 6: Final answer
   x = 1,419.53