Finding the Fourth Proportional to 1,276.05, 1,760.76 and 737.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,276.05 : 1,760.76 = 737.67 : x
2. Step 2: Convert to fraction form
   1,276.05/1,760.76 = 737.67/x
3. Step 3: Cross multiply
   1,276.05x = 1,760.76 × 737.67
4. Step 4: Simplify right side
   1,276.05x = 1,298,859.83
5. Step 5: Solve for x
   x = 1,298,859.83/1,276.05
6. Step 6: Final answer
   x = 1,017.88