Finding the Fourth Proportional to 2,089.55, 2,883.57 and 1,158.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,089.55 : 2,883.57 = 1,158.05 : x
2. Step 2: Convert to fraction form
   2,089.55/2,883.57 = 1,158.05/x
3. Step 3: Cross multiply
   2,089.55x = 2,883.57 × 1,158.05
4. Step 4: Simplify right side
   2,089.55x = 3,339,314.66
5. Step 5: Solve for x
   x = 3,339,314.66/2,089.55
6. Step 6: Final answer
   x = 1,598.10