Finding the Fourth Proportional to 3,124.10, 4,686.18 and 1,274.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,124.10 : 4,686.18 = 1,274.72 : x
2. Step 2: Convert to fraction form
   3,124.10/4,686.18 = 1,274.72/x
3. Step 3: Cross multiply
   3,124.10x = 4,686.18 × 1,274.72
4. Step 4: Simplify right side
   3,124.10x = 5,973,567.37
5. Step 5: Solve for x
   x = 5,973,567.37/3,124.10
6. Step 6: Final answer
   x = 1,912.09