Finding the Fourth Proportional to 1,558.35, 2,150.69 and 1,164.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,558.35 : 2,150.69 = 1,164.69 : x
2. Step 2: Convert to fraction form
   1,558.35/2,150.69 = 1,164.69/x
3. Step 3: Cross multiply
   1,558.35x = 2,150.69 × 1,164.69
4. Step 4: Simplify right side
   1,558.35x = 2,504,881.31
5. Step 5: Solve for x
   x = 2,504,881.31/1,558.35
6. Step 6: Final answer
   x = 1,607.39