Finding the Fourth Proportional to 2,287.10, 3,156.42 and 1,403.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287.10 : 3,156.42 = 1,403.48 : x
2. Step 2: Convert to fraction form
   2,287.10/3,156.42 = 1,403.48/x
3. Step 3: Cross multiply
   2,287.10x = 3,156.42 × 1,403.48
4. Step 4: Simplify right side
   2,287.10x = 4,429,956.56
5. Step 5: Solve for x
   x = 4,429,956.56/2,287.10
6. Step 6: Final answer
   x = 1,936.94