Finding the Fourth Proportional to 2,118.42, 2,923.57 and 1,174.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118.42 : 2,923.57 = 1,174.26 : x
2. Step 2: Convert to fraction form
   2,118.42/2,923.57 = 1,174.26/x
3. Step 3: Cross multiply
   2,118.42x = 2,923.57 × 1,174.26
4. Step 4: Simplify right side
   2,118.42x = 3,433,031.31
5. Step 5: Solve for x
   x = 3,433,031.31/2,118.42
6. Step 6: Final answer
   x = 1,620.56