Finding the Fourth Proportional to 2,315.89, 3,486.24 and 2,077.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,315.89 : 3,486.24 = 2,077.75 : x
2. Step 2: Convert to fraction form
   2,315.89/3,486.24 = 2,077.75/x
3. Step 3: Cross multiply
   2,315.89x = 3,486.24 × 2,077.75
4. Step 4: Simplify right side
   2,315.89x = 7,243,535.16
5. Step 5: Solve for x
   x = 7,243,535.16/2,315.89
6. Step 6: Final answer
   x = 3,127.75