Finding the Fourth Proportional to 1,126, 1,550.28 and 1,074

Step by Step Solution

1. Step 1: Write the proportion equation
   1,126 : 1,550.28 = 1,074 : x
2. Step 2: Convert to fraction form
   1,126/1,550.28 = 1,074/x
3. Step 3: Cross multiply
   1,126x = 1,550.28 × 1,074
4. Step 4: Simplify right side
   1,126x = 1,665,000.72
5. Step 5: Solve for x
   x = 1,665,000.72/1,126
6. Step 6: Final answer
   x = 1,478.69