Finding the Fourth Proportional to 1,925.56, 2,867.89 and 1,805.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,925.56 : 2,867.89 = 1,805.68 : x
2. Step 2: Convert to fraction form
   1,925.56/2,867.89 = 1,805.68/x
3. Step 3: Cross multiply
   1,925.56x = 2,867.89 × 1,805.68
4. Step 4: Simplify right side
   1,925.56x = 5,178,491.62
5. Step 5: Solve for x
   x = 5,178,491.62/1,925.56
6. Step 6: Final answer
   x = 2,689.34