Finding the Fourth Proportional to 2,103.89, 3,154.48 and 934.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.89 : 3,154.48 = 934.25 : x
2. Step 2: Convert to fraction form
   2,103.89/3,154.48 = 934.25/x
3. Step 3: Cross multiply
   2,103.89x = 3,154.48 × 934.25
4. Step 4: Simplify right side
   2,103.89x = 2,947,072.94
5. Step 5: Solve for x
   x = 2,947,072.94/2,103.89
6. Step 6: Final answer
   x = 1,400.77