Finding the Fourth Proportional to 1,103.40, 1,656.45 and 1,095.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.40 : 1,656.45 = 1,095.30 : x
2. Step 2: Convert to fraction form
   1,103.40/1,656.45 = 1,095.30/x
3. Step 3: Cross multiply
   1,103.40x = 1,656.45 × 1,095.30
4. Step 4: Simplify right side
   1,103.40x = 1,814,309.69
5. Step 5: Solve for x
   x = 1,814,309.69/1,103.40
6. Step 6: Final answer
   x = 1,644.29