Finding the Fourth Proportional to 1,436.94, 1,983.30 and 938.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.94 : 1,983.30 = 938.76 : x
2. Step 2: Convert to fraction form
   1,436.94/1,983.30 = 938.76/x
3. Step 3: Cross multiply
   1,436.94x = 1,983.30 × 938.76
4. Step 4: Simplify right side
   1,436.94x = 1,861,842.71
5. Step 5: Solve for x
   x = 1,861,842.71/1,436.94
6. Step 6: Final answer
   x = 1,295.70