Finding the Fourth Proportional to 2,594.31, 3,889.31 and 1,868.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,594.31 : 3,889.31 = 1,868.55 : x
2. Step 2: Convert to fraction form
   2,594.31/3,889.31 = 1,868.55/x
3. Step 3: Cross multiply
   2,594.31x = 3,889.31 × 1,868.55
4. Step 4: Simplify right side
   2,594.31x = 7,267,360.86
5. Step 5: Solve for x
   x = 7,267,360.86/2,594.31
6. Step 6: Final answer
   x = 2,801.27