Finding the Fourth Proportional to 2,877.82, 4,315.38 and 1,317.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,877.82 : 4,315.38 = 1,317.38 : x
2. Step 2: Convert to fraction form
   2,877.82/4,315.38 = 1,317.38/x
3. Step 3: Cross multiply
   2,877.82x = 4,315.38 × 1,317.38
4. Step 4: Simplify right side
   2,877.82x = 5,684,995.30
5. Step 5: Solve for x
   x = 5,684,995.30/2,877.82
6. Step 6: Final answer
   x = 1,975.45