Finding the Fourth Proportional to 2,142.41, 2,956.51 and 1,245.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142.41 : 2,956.51 = 1,245.83 : x
2. Step 2: Convert to fraction form
   2,142.41/2,956.51 = 1,245.83/x
3. Step 3: Cross multiply
   2,142.41x = 2,956.51 × 1,245.83
4. Step 4: Simplify right side
   2,142.41x = 3,683,308.85
5. Step 5: Solve for x
   x = 3,683,308.85/2,142.41
6. Step 6: Final answer
   x = 1,719.24