Finding the Fourth Proportional to 1,600.56, 2,207.72 and 1,103.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,600.56 : 2,207.72 = 1,103.22 : x
2. Step 2: Convert to fraction form
   1,600.56/2,207.72 = 1,103.22/x
3. Step 3: Cross multiply
   1,600.56x = 2,207.72 × 1,103.22
4. Step 4: Simplify right side
   1,600.56x = 2,435,600.86
5. Step 5: Solve for x
   x = 2,435,600.86/1,600.56
6. Step 6: Final answer
   x = 1,521.72