Finding the Fourth Proportional to 2,300.91, 3,448.29 and 838.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,300.91 : 3,448.29 = 838.68 : x
2. Step 2: Convert to fraction form
   2,300.91/3,448.29 = 838.68/x
3. Step 3: Cross multiply
   2,300.91x = 3,448.29 × 838.68
4. Step 4: Simplify right side
   2,300.91x = 2,892,011.86
5. Step 5: Solve for x
   x = 2,892,011.86/2,300.91
6. Step 6: Final answer
   x = 1,256.90