Finding the Fourth Proportional to 2,305.56, 3,180.72 and 1,607.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,305.56 : 3,180.72 = 1,607.34 : x
2. Step 2: Convert to fraction form
   2,305.56/3,180.72 = 1,607.34/x
3. Step 3: Cross multiply
   2,305.56x = 3,180.72 × 1,607.34
4. Step 4: Simplify right side
   2,305.56x = 5,112,498.48
5. Step 5: Solve for x
   x = 5,112,498.48/2,305.56
6. Step 6: Final answer
   x = 2,217.46