Finding the Fourth Proportional to 2,103.80, 3,155.81 and 933.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.80 : 3,155.81 = 933.53 : x
2. Step 2: Convert to fraction form
   2,103.80/3,155.81 = 933.53/x
3. Step 3: Cross multiply
   2,103.80x = 3,155.81 × 933.53
4. Step 4: Simplify right side
   2,103.80x = 2,946,043.31
5. Step 5: Solve for x
   x = 2,946,043.31/2,103.80
6. Step 6: Final answer
   x = 1,400.34