Finding the Fourth Proportional to 1,797.78, 2,479.89 and 1,134.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,797.78 : 2,479.89 = 1,134.39 : x
2. Step 2: Convert to fraction form
   1,797.78/2,479.89 = 1,134.39/x
3. Step 3: Cross multiply
   1,797.78x = 2,479.89 × 1,134.39
4. Step 4: Simplify right side
   1,797.78x = 2,813,162.42
5. Step 5: Solve for x
   x = 2,813,162.42/1,797.78
6. Step 6: Final answer
   x = 1,564.80