Finding the Fourth Proportional to 2,085.66, 2,878.29 and 1,154.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085.66 : 2,878.29 = 1,154.34 : x
2. Step 2: Convert to fraction form
   2,085.66/2,878.29 = 1,154.34/x
3. Step 3: Cross multiply
   2,085.66x = 2,878.29 × 1,154.34
4. Step 4: Simplify right side
   2,085.66x = 3,322,525.28
5. Step 5: Solve for x
   x = 3,322,525.28/2,085.66
6. Step 6: Final answer
   x = 1,593.03