Finding the Fourth Proportional to 1,274.56, 1,754.69 and 1,108.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,274.56 : 1,754.69 = 1,108.68 : x
2. Step 2: Convert to fraction form
   1,274.56/1,754.69 = 1,108.68/x
3. Step 3: Cross multiply
   1,274.56x = 1,754.69 × 1,108.68
4. Step 4: Simplify right side
   1,274.56x = 1,945,389.71
5. Step 5: Solve for x
   x = 1,945,389.71/1,274.56
6. Step 6: Final answer
   x = 1,526.32