Finding the Fourth Proportional to 2,288.05, 3,433.71 and 1,054.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.05 : 3,433.71 = 1,054.69 : x
2. Step 2: Convert to fraction form
   2,288.05/3,433.71 = 1,054.69/x
3. Step 3: Cross multiply
   2,288.05x = 3,433.71 × 1,054.69
4. Step 4: Simplify right side
   2,288.05x = 3,621,499.60
5. Step 5: Solve for x
   x = 3,621,499.60/2,288.05
6. Step 6: Final answer
   x = 1,582.79