Finding the Fourth Proportional to 2,171.74, 3,256.58 and 940.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171.74 : 3,256.58 = 940.18 : x
2. Step 2: Convert to fraction form
   2,171.74/3,256.58 = 940.18/x
3. Step 3: Cross multiply
   2,171.74x = 3,256.58 × 940.18
4. Step 4: Simplify right side
   2,171.74x = 3,061,778.21
5. Step 5: Solve for x
   x = 3,061,778.21/2,171.74
6. Step 6: Final answer
   x = 1,409.83