Finding the Fourth Proportional to 2,103.93, 2,903.27 and 1,172.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.93 : 2,903.27 = 1,172.25 : x
2. Step 2: Convert to fraction form
   2,103.93/2,903.27 = 1,172.25/x
3. Step 3: Cross multiply
   2,103.93x = 2,903.27 × 1,172.25
4. Step 4: Simplify right side
   2,103.93x = 3,403,352.40
5. Step 5: Solve for x
   x = 3,403,352.40/2,103.93
6. Step 6: Final answer
   x = 1,617.62