Finding the Fourth Proportional to 1,355.83, 2,032.43 and 1,109.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,355.83 : 2,032.43 = 1,109.56 : x
2. Step 2: Convert to fraction form
   1,355.83/2,032.43 = 1,109.56/x
3. Step 3: Cross multiply
   1,355.83x = 2,032.43 × 1,109.56
4. Step 4: Simplify right side
   1,355.83x = 2,255,103.75
5. Step 5: Solve for x
   x = 2,255,103.75/1,355.83
6. Step 6: Final answer
   x = 1,663.27