Finding the Fourth Proportional to 3,123.60, 4,684.25 and 1,273.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.60 : 4,684.25 = 1,273.72 : x
2. Step 2: Convert to fraction form
   3,123.60/4,684.25 = 1,273.72/x
3. Step 3: Cross multiply
   3,123.60x = 4,684.25 × 1,273.72
4. Step 4: Simplify right side
   3,123.60x = 5,966,422.91
5. Step 5: Solve for x
   x = 5,966,422.91/3,123.60
6. Step 6: Final answer
   x = 1,910.11