Finding the Fourth Proportional to 2,124.37, 3,186.15 and 738.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,124.37 : 3,186.15 = 738.61 : x
2. Step 2: Convert to fraction form
   2,124.37/3,186.15 = 738.61/x
3. Step 3: Cross multiply
   2,124.37x = 3,186.15 × 738.61
4. Step 4: Simplify right side
   2,124.37x = 2,353,322.25
5. Step 5: Solve for x
   x = 2,353,322.25/2,124.37
6. Step 6: Final answer
   x = 1,107.77