Finding the Fourth Proportional to 1,640.82, 2,263.58 and 1,109.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,640.82 : 2,263.58 = 1,109.03 : x
2. Step 2: Convert to fraction form
   1,640.82/2,263.58 = 1,109.03/x
3. Step 3: Cross multiply
   1,640.82x = 2,263.58 × 1,109.03
4. Step 4: Simplify right side
   1,640.82x = 2,510,365.42
5. Step 5: Solve for x
   x = 2,510,365.42/1,640.82
6. Step 6: Final answer
   x = 1,529.94