Finding the Fourth Proportional to 1,375.36, 1,900.50 and 1,043.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,375.36 : 1,900.50 = 1,043.20 : x
2. Step 2: Convert to fraction form
   1,375.36/1,900.50 = 1,043.20/x
3. Step 3: Cross multiply
   1,375.36x = 1,900.50 × 1,043.20
4. Step 4: Simplify right side
   1,375.36x = 1,982,601.60
5. Step 5: Solve for x
   x = 1,982,601.60/1,375.36
6. Step 6: Final answer
   x = 1,441.51