Finding the Fourth Proportional to 3,123.56, 4,310.52 and 1,726.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.56 : 4,310.52 = 1,726.31 : x
2. Step 2: Convert to fraction form
   3,123.56/4,310.52 = 1,726.31/x
3. Step 3: Cross multiply
   3,123.56x = 4,310.52 × 1,726.31
4. Step 4: Simplify right side
   3,123.56x = 7,441,298.08
5. Step 5: Solve for x
   x = 7,441,298.08/3,123.56
6. Step 6: Final answer
   x = 2,382.31