Finding the Fourth Proportional to 2,298.57, 3,448.37 and 837.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,298.57 : 3,448.37 = 837.72 : x
2. Step 2: Convert to fraction form
   2,298.57/3,448.37 = 837.72/x
3. Step 3: Cross multiply
   2,298.57x = 3,448.37 × 837.72
4. Step 4: Simplify right side
   2,298.57x = 2,888,778.83
5. Step 5: Solve for x
   x = 2,888,778.83/2,298.57
6. Step 6: Final answer
   x = 1,256.77