Finding the Fourth Proportional to 2,592.93, 3,890.15 and 837.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,592.93 : 3,890.15 = 837.90 : x
2. Step 2: Convert to fraction form
   2,592.93/3,890.15 = 837.90/x
3. Step 3: Cross multiply
   2,592.93x = 3,890.15 × 837.90
4. Step 4: Simplify right side
   2,592.93x = 3,259,556.69
5. Step 5: Solve for x
   x = 3,259,556.69/2,592.93
6. Step 6: Final answer
   x = 1,257.09