Finding the Fourth Proportional to 2,118.86, 2,924.17 and 1,174.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118.86 : 2,924.17 = 1,174.69 : x
2. Step 2: Convert to fraction form
   2,118.86/2,924.17 = 1,174.69/x
3. Step 3: Cross multiply
   2,118.86x = 2,924.17 × 1,174.69
4. Step 4: Simplify right side
   2,118.86x = 3,434,993.26
5. Step 5: Solve for x
   x = 3,434,993.26/2,118.86
6. Step 6: Final answer
   x = 1,621.15