Finding the Fourth Proportional to 1,359.87, 1,876.61 and 738.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.87 : 1,876.61 = 738.87 : x
2. Step 2: Convert to fraction form
   1,359.87/1,876.61 = 738.87/x
3. Step 3: Cross multiply
   1,359.87x = 1,876.61 × 738.87
4. Step 4: Simplify right side
   1,359.87x = 1,386,570.83
5. Step 5: Solve for x
   x = 1,386,570.83/1,359.87
6. Step 6: Final answer
   x = 1,019.63