Finding the Fourth Proportional to 1,359.72, 1,876.41 and 738.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.72 : 1,876.41 = 738.72 : x
2. Step 2: Convert to fraction form
   1,359.72/1,876.41 = 738.72/x
3. Step 3: Cross multiply
   1,359.72x = 1,876.41 × 738.72
4. Step 4: Simplify right side
   1,359.72x = 1,386,141.60
5. Step 5: Solve for x
   x = 1,386,141.60/1,359.72
6. Step 6: Final answer
   x = 1,019.43