Finding the Fourth Proportional to 2,081.52, 3,114.35 and 1,157.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.52 : 3,114.35 = 1,157.80 : x
2. Step 2: Convert to fraction form
   2,081.52/3,114.35 = 1,157.80/x
3. Step 3: Cross multiply
   2,081.52x = 3,114.35 × 1,157.80
4. Step 4: Simplify right side
   2,081.52x = 3,605,794.43
5. Step 5: Solve for x
   x = 3,605,794.43/2,081.52
6. Step 6: Final answer
   x = 1,732.29