Finding the Fourth Proportional to 3,123.16, 4,310.34 and 2,375.80

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.16 : 4,310.34 = 2,375.80 : x
2. Step 2: Convert to fraction form
   3,123.16/4,310.34 = 2,375.80/x
3. Step 3: Cross multiply
   3,123.16x = 4,310.34 × 2,375.80
4. Step 4: Simplify right side
   3,123.16x = 10,240,505.77
5. Step 5: Solve for x
   x = 10,240,505.77/3,123.16
6. Step 6: Final answer
   x = 3,278.89