Finding the Fourth Proportional to 2,700.56, 4,051.22 and 945.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,700.56 : 4,051.22 = 945.31 : x
2. Step 2: Convert to fraction form
   2,700.56/4,051.22 = 945.31/x
3. Step 3: Cross multiply
   2,700.56x = 4,051.22 × 945.31
4. Step 4: Simplify right side
   2,700.56x = 3,829,643.92
5. Step 5: Solve for x
   x = 3,829,643.92/2,700.56
6. Step 6: Final answer
   x = 1,418.09