Finding the Fourth Proportional to 2,551.96, 3,826.28 and 1,381.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,551.96 : 3,826.28 = 1,381.22 : x
2. Step 2: Convert to fraction form
   2,551.96/3,826.28 = 1,381.22/x
3. Step 3: Cross multiply
   2,551.96x = 3,826.28 × 1,381.22
4. Step 4: Simplify right side
   2,551.96x = 5,284,934.46
5. Step 5: Solve for x
   x = 5,284,934.46/2,551.96
6. Step 6: Final answer
   x = 2,070.93