Finding the Fourth Proportional to 1,096.56, 1,510.60 and 938.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.56 : 1,510.60 = 938.68 : x
2. Step 2: Convert to fraction form
   1,096.56/1,510.60 = 938.68/x
3. Step 3: Cross multiply
   1,096.56x = 1,510.60 × 938.68
4. Step 4: Simplify right side
   1,096.56x = 1,417,969.55
5. Step 5: Solve for x
   x = 1,417,969.55/1,096.56
6. Step 6: Final answer
   x = 1,293.11