Finding the Fourth Proportional to 2,335.56, 3,221.82 and 1,672.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,335.56 : 3,221.82 = 1,672.86 : x
2. Step 2: Convert to fraction form
   2,335.56/3,221.82 = 1,672.86/x
3. Step 3: Cross multiply
   2,335.56x = 3,221.82 × 1,672.86
4. Step 4: Simplify right side
   2,335.56x = 5,389,653.81
5. Step 5: Solve for x
   x = 5,389,653.81/2,335.56
6. Step 6: Final answer
   x = 2,307.65