Finding the Fourth Proportional to 1,956.72, 2,700.35 and 1,117.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,956.72 : 2,700.35 = 1,117.43 : x
2. Step 2: Convert to fraction form
   1,956.72/2,700.35 = 1,117.43/x
3. Step 3: Cross multiply
   1,956.72x = 2,700.35 × 1,117.43
4. Step 4: Simplify right side
   1,956.72x = 3,017,452.10
5. Step 5: Solve for x
   x = 3,017,452.10/1,956.72
6. Step 6: Final answer
   x = 1,542.10