Finding the Fourth Proportional to 2,139.39, 3,193.61 and 1,848.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139.39 : 3,193.61 = 1,848.76 : x
2. Step 2: Convert to fraction form
   2,139.39/3,193.61 = 1,848.76/x
3. Step 3: Cross multiply
   2,139.39x = 3,193.61 × 1,848.76
4. Step 4: Simplify right side
   2,139.39x = 5,904,193.21
5. Step 5: Solve for x
   x = 5,904,193.21/2,139.39
6. Step 6: Final answer
   x = 2,759.76