Finding the Fourth Proportional to 2,569.86, 3,851.04 and 1,398.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,569.86 : 3,851.04 = 1,398.86 : x
2. Step 2: Convert to fraction form
   2,569.86/3,851.04 = 1,398.86/x
3. Step 3: Cross multiply
   2,569.86x = 3,851.04 × 1,398.86
4. Step 4: Simplify right side
   2,569.86x = 5,387,065.81
5. Step 5: Solve for x
   x = 5,387,065.81/2,569.86
6. Step 6: Final answer
   x = 2,096.25