Finding the Fourth Proportional to 1,353.70, 1,868.97 and 1,105.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,353.70 : 1,868.97 = 1,105.62 : x
2. Step 2: Convert to fraction form
   1,353.70/1,868.97 = 1,105.62/x
3. Step 3: Cross multiply
   1,353.70x = 1,868.97 × 1,105.62
4. Step 4: Simplify right side
   1,353.70x = 2,066,370.61
5. Step 5: Solve for x
   x = 2,066,370.61/1,353.70
6. Step 6: Final answer
   x = 1,526.46