Finding the Fourth Proportional to 3,333.56, 4,598.78 and 2,155.01

Step by Step Solution

1. Step 1: Write the proportion equation
   3,333.56 : 4,598.78 = 2,155.01 : x
2. Step 2: Convert to fraction form
   3,333.56/4,598.78 = 2,155.01/x
3. Step 3: Cross multiply
   3,333.56x = 4,598.78 × 2,155.01
4. Step 4: Simplify right side
   3,333.56x = 9,910,383.12
5. Step 5: Solve for x
   x = 9,910,383.12/3,333.56
6. Step 6: Final answer
   x = 2,972.92