Finding the Fourth Proportional to 1,776.54, 2,662.38 and 1,126.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,776.54 : 2,662.38 = 1,126.12 : x
2. Step 2: Convert to fraction form
   1,776.54/2,662.38 = 1,126.12/x
3. Step 3: Cross multiply
   1,776.54x = 2,662.38 × 1,126.12
4. Step 4: Simplify right side
   1,776.54x = 2,998,159.37
5. Step 5: Solve for x
   x = 2,998,159.37/1,776.54
6. Step 6: Final answer
   x = 1,687.64