Finding the Fourth Proportional to 2,138.82, 2,944.71 and 1,862.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,138.82 : 2,944.71 = 1,862.70 : x
2. Step 2: Convert to fraction form
   2,138.82/2,944.71 = 1,862.70/x
3. Step 3: Cross multiply
   2,138.82x = 2,944.71 × 1,862.70
4. Step 4: Simplify right side
   2,138.82x = 5,485,111.32
5. Step 5: Solve for x
   x = 5,485,111.32/2,138.82
6. Step 6: Final answer
   x = 2,564.55