Finding the Fourth Proportional to 2,593.56, 3,889.98 and 838.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,593.56 : 3,889.98 = 838.74 : x
2. Step 2: Convert to fraction form
   2,593.56/3,889.98 = 838.74/x
3. Step 3: Cross multiply
   2,593.56x = 3,889.98 × 838.74
4. Step 4: Simplify right side
   2,593.56x = 3,262,681.83
5. Step 5: Solve for x
   x = 3,262,681.83/2,593.56
6. Step 6: Final answer
   x = 1,257.99