Finding the Fourth Proportional to 1,601.42, 2,211.54 and 1,105.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,601.42 : 2,211.54 = 1,105.34 : x
2. Step 2: Convert to fraction form
   1,601.42/2,211.54 = 1,105.34/x
3. Step 3: Cross multiply
   1,601.42x = 2,211.54 × 1,105.34
4. Step 4: Simplify right side
   1,601.42x = 2,444,503.62
5. Step 5: Solve for x
   x = 2,444,503.62/1,601.42
6. Step 6: Final answer
   x = 1,526.46