Finding the Fourth Proportional to 1,646.45, 2,272.16 and 1,108.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,646.45 : 2,272.16 = 1,108.82 : x
2. Step 2: Convert to fraction form
   1,646.45/2,272.16 = 1,108.82/x
3. Step 3: Cross multiply
   1,646.45x = 2,272.16 × 1,108.82
4. Step 4: Simplify right side
   1,646.45x = 2,519,407.86
5. Step 5: Solve for x
   x = 2,519,407.86/1,646.45
6. Step 6: Final answer
   x = 1,530.20