Finding the Fourth Proportional to 2,142.72, 2,956.32 and 1,314.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142.72 : 2,956.32 = 1,314.72 : x
2. Step 2: Convert to fraction form
   2,142.72/2,956.32 = 1,314.72/x
3. Step 3: Cross multiply
   2,142.72x = 2,956.32 × 1,314.72
4. Step 4: Simplify right side
   2,142.72x = 3,886,733.03
5. Step 5: Solve for x
   x = 3,886,733.03/2,142.72
6. Step 6: Final answer
   x = 1,813.92