Finding the Fourth Proportional to 1,558.05, 2,150.25 and 1,164.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,558.05 : 2,150.25 = 1,164.39 : x
2. Step 2: Convert to fraction form
   1,558.05/2,150.25 = 1,164.39/x
3. Step 3: Cross multiply
   1,558.05x = 2,150.25 × 1,164.39
4. Step 4: Simplify right side
   1,558.05x = 2,503,729.60
5. Step 5: Solve for x
   x = 2,503,729.60/1,558.05
6. Step 6: Final answer
   x = 1,606.96