Finding the Fourth Proportional to 3,123.32, 4,308.90 and 1,796.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.32 : 4,308.90 = 1,796.72 : x
2. Step 2: Convert to fraction form
   3,123.32/4,308.90 = 1,796.72/x
3. Step 3: Cross multiply
   3,123.32x = 4,308.90 × 1,796.72
4. Step 4: Simplify right side
   3,123.32x = 7,741,886.81
5. Step 5: Solve for x
   x = 7,741,886.81/3,123.32
6. Step 6: Final answer
   x = 2,478.74