Finding the Fourth Proportional to 2,199.30, 3,297.46 and 1,158.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,199.30 : 3,297.46 = 1,158.20 : x
2. Step 2: Convert to fraction form
   2,199.30/3,297.46 = 1,158.20/x
3. Step 3: Cross multiply
   2,199.30x = 3,297.46 × 1,158.20
4. Step 4: Simplify right side
   2,199.30x = 3,819,118.17
5. Step 5: Solve for x
   x = 3,819,118.17/2,199.30
6. Step 6: Final answer
   x = 1,736.52