Finding the Fourth Proportional to 2,591.82, 3,878.69 and 1,862.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591.82 : 3,878.69 = 1,862.82 : x
2. Step 2: Convert to fraction form
   2,591.82/3,878.69 = 1,862.82/x
3. Step 3: Cross multiply
   2,591.82x = 3,878.69 × 1,862.82
4. Step 4: Simplify right side
   2,591.82x = 7,225,291.99
5. Step 5: Solve for x
   x = 7,225,291.99/2,591.82
6. Step 6: Final answer
   x = 2,787.73