Finding the Fourth Proportional to 3,574.76, 5,362.67 and 1,109.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,574.76 : 5,362.67 = 1,109.78 : x
2. Step 2: Convert to fraction form
   3,574.76/5,362.67 = 1,109.78/x
3. Step 3: Cross multiply
   3,574.76x = 5,362.67 × 1,109.78
4. Step 4: Simplify right side
   3,574.76x = 5,951,391.77
5. Step 5: Solve for x
   x = 5,951,391.77/3,574.76
6. Step 6: Final answer
   x = 1,664.84