Finding the Fourth Proportional to 2,072.00, 2,855.61 and 1,697.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,072.00 : 2,855.61 = 1,697.78 : x
2. Step 2: Convert to fraction form
   2,072.00/2,855.61 = 1,697.78/x
3. Step 3: Cross multiply
   2,072.00x = 2,855.61 × 1,697.78
4. Step 4: Simplify right side
   2,072.00x = 4,848,204.68
5. Step 5: Solve for x
   x = 4,848,204.68/2,072.00
6. Step 6: Final answer
   x = 2,339.86