Finding the Fourth Proportional to 2,592.84, 3,889.59 and 837.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,592.84 : 3,889.59 = 837.90 : x
2. Step 2: Convert to fraction form
   2,592.84/3,889.59 = 837.90/x
3. Step 3: Cross multiply
   2,592.84x = 3,889.59 × 837.90
4. Step 4: Simplify right side
   2,592.84x = 3,259,087.46
5. Step 5: Solve for x
   x = 3,259,087.46/2,592.84
6. Step 6: Final answer
   x = 1,256.96