Finding the Fourth Proportional to 2,287.41, 3,156.90 and 1,292.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287.41 : 3,156.90 = 1,292.73 : x
2. Step 2: Convert to fraction form
   2,287.41/3,156.90 = 1,292.73/x
3. Step 3: Cross multiply
   2,287.41x = 3,156.90 × 1,292.73
4. Step 4: Simplify right side
   2,287.41x = 4,081,019.34
5. Step 5: Solve for x
   x = 4,081,019.34/2,287.41
6. Step 6: Final answer
   x = 1,784.12