Finding the Fourth Proportional to 2,775.89, 4,164.74 and 1,314.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,775.89 : 4,164.74 = 1,314.86 : x
2. Step 2: Convert to fraction form
   2,775.89/4,164.74 = 1,314.86/x
3. Step 3: Cross multiply
   2,775.89x = 4,164.74 × 1,314.86
4. Step 4: Simplify right side
   2,775.89x = 5,476,022.64
5. Step 5: Solve for x
   x = 5,476,022.64/2,775.89
6. Step 6: Final answer
   x = 1,972.71