Finding the Fourth Proportional to 3,933.99, 5,902.38 and 1,855.58

Step by Step Solution

1. Step 1: Write the proportion equation
   3,933.99 : 5,902.38 = 1,855.58 : x
2. Step 2: Convert to fraction form
   3,933.99/5,902.38 = 1,855.58/x
3. Step 3: Cross multiply
   3,933.99x = 5,902.38 × 1,855.58
4. Step 4: Simplify right side
   3,933.99x = 10,952,308.77
5. Step 5: Solve for x
   x = 10,952,308.77/3,933.99
6. Step 6: Final answer
   x = 2,784.02