Finding the Fourth Proportional to 2,256.74, 3,114.42 and 1,372.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,256.74 : 3,114.42 = 1,372.40 : x
2. Step 2: Convert to fraction form
   2,256.74/3,114.42 = 1,372.40/x
3. Step 3: Cross multiply
   2,256.74x = 3,114.42 × 1,372.40
4. Step 4: Simplify right side
   2,256.74x = 4,274,230.01
5. Step 5: Solve for x
   x = 4,274,230.01/2,256.74
6. Step 6: Final answer
   x = 1,893.98