Finding the Fourth Proportional to 1,271.56, 1,754.76 and 774.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,271.56 : 1,754.76 = 774.04 : x
2. Step 2: Convert to fraction form
   1,271.56/1,754.76 = 774.04/x
3. Step 3: Cross multiply
   1,271.56x = 1,754.76 × 774.04
4. Step 4: Simplify right side
   1,271.56x = 1,358,254.43
5. Step 5: Solve for x
   x = 1,358,254.43/1,271.56
6. Step 6: Final answer
   x = 1,068.18