Finding the Fourth Proportional to 1,103.98, 1,653.69 and 1,053.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.98 : 1,653.69 = 1,053.25 : x
2. Step 2: Convert to fraction form
   1,103.98/1,653.69 = 1,053.25/x
3. Step 3: Cross multiply
   1,103.98x = 1,653.69 × 1,053.25
4. Step 4: Simplify right side
   1,103.98x = 1,741,755.15
5. Step 5: Solve for x
   x = 1,741,755.15/1,103.98
6. Step 6: Final answer
   x = 1,577.71