Finding the Fourth Proportional to 2,118.37, 2,923.25 and 1,186.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118.37 : 2,923.25 = 1,186.69 : x
2. Step 2: Convert to fraction form
   2,118.37/2,923.25 = 1,186.69/x
3. Step 3: Cross multiply
   2,118.37x = 2,923.25 × 1,186.69
4. Step 4: Simplify right side
   2,118.37x = 3,468,985.61
5. Step 5: Solve for x
   x = 3,468,985.61/2,118.37
6. Step 6: Final answer
   x = 1,637.57