Finding the Fourth Proportional to 2,103.92, 3,156.57 and 933.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.92 : 3,156.57 = 933.77 : x
2. Step 2: Convert to fraction form
   2,103.92/3,156.57 = 933.77/x
3. Step 3: Cross multiply
   2,103.92x = 3,156.57 × 933.77
4. Step 4: Simplify right side
   2,103.92x = 2,947,494.59
5. Step 5: Solve for x
   x = 2,947,494.59/2,103.92
6. Step 6: Final answer
   x = 1,400.96