Finding the Fourth Proportional to 2,551.47, 3,823.86 and 1,381.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,551.47 : 3,823.86 = 1,381.71 : x
2. Step 2: Convert to fraction form
   2,551.47/3,823.86 = 1,381.71/x
3. Step 3: Cross multiply
   2,551.47x = 3,823.86 × 1,381.71
4. Step 4: Simplify right side
   2,551.47x = 5,283,465.60
5. Step 5: Solve for x
   x = 5,283,465.60/2,551.47
6. Step 6: Final answer
   x = 2,070.75