Finding the Fourth Proportional to 1,807.16, 2,697.78 and 1,727.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,807.16 : 2,697.78 = 1,727.37 : x
2. Step 2: Convert to fraction form
   1,807.16/2,697.78 = 1,727.37/x
3. Step 3: Cross multiply
   1,807.16x = 2,697.78 × 1,727.37
4. Step 4: Simplify right side
   1,807.16x = 4,660,070.72
5. Step 5: Solve for x
   x = 4,660,070.72/1,807.16
6. Step 6: Final answer
   x = 2,578.68