Finding the Fourth Proportional to 2,135.89, 2,947.76 and 1,251.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,135.89 : 2,947.76 = 1,251.82 : x
2. Step 2: Convert to fraction form
   2,135.89/2,947.76 = 1,251.82/x
3. Step 3: Cross multiply
   2,135.89x = 2,947.76 × 1,251.82
4. Step 4: Simplify right side
   2,135.89x = 3,690,064.92
5. Step 5: Solve for x
   x = 3,690,064.92/2,135.89
6. Step 6: Final answer
   x = 1,727.65