Finding the Fourth Proportional to 2,868.57, 3,961.32 and 1,862.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,868.57 : 3,961.32 = 1,862.01 : x
2. Step 2: Convert to fraction form
   2,868.57/3,961.32 = 1,862.01/x
3. Step 3: Cross multiply
   2,868.57x = 3,961.32 × 1,862.01
4. Step 4: Simplify right side
   2,868.57x = 7,376,017.45
5. Step 5: Solve for x
   x = 7,376,017.45/2,868.57
6. Step 6: Final answer
   x = 2,571.32