Finding the Fourth Proportional to 2,118.67, 2,923.74 and 1,174.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118.67 : 2,923.74 = 1,174.46 : x
2. Step 2: Convert to fraction form
   2,118.67/2,923.74 = 1,174.46/x
3. Step 3: Cross multiply
   2,118.67x = 2,923.74 × 1,174.46
4. Step 4: Simplify right side
   2,118.67x = 3,433,801.06
5. Step 5: Solve for x
   x = 3,433,801.06/2,118.67
6. Step 6: Final answer
   x = 1,620.74