Finding the Fourth Proportional to 2,079.61, 2,869.82 and 1,135.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,079.61 : 2,869.82 = 1,135.37 : x
2. Step 2: Convert to fraction form
   2,079.61/2,869.82 = 1,135.37/x
3. Step 3: Cross multiply
   2,079.61x = 2,869.82 × 1,135.37
4. Step 4: Simplify right side
   2,079.61x = 3,258,287.51
5. Step 5: Solve for x
   x = 3,258,287.51/2,079.61
6. Step 6: Final answer
   x = 1,566.78