Finding the Fourth Proportional to 2,287.97, 3,155.52 and 1,403.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287.97 : 3,155.52 = 1,403.15 : x
2. Step 2: Convert to fraction form
   2,287.97/3,155.52 = 1,403.15/x
3. Step 3: Cross multiply
   2,287.97x = 3,155.52 × 1,403.15
4. Step 4: Simplify right side
   2,287.97x = 4,427,667.89
5. Step 5: Solve for x
   x = 4,427,667.89/2,287.97
6. Step 6: Final answer
   x = 1,935.19