Finding the Fourth Proportional to 3,561.80, 5,343.53 and 1,096.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,561.80 : 5,343.53 = 1,096.56 : x
2. Step 2: Convert to fraction form
   3,561.80/5,343.53 = 1,096.56/x
3. Step 3: Cross multiply
   3,561.80x = 5,343.53 × 1,096.56
4. Step 4: Simplify right side
   3,561.80x = 5,859,495.77
5. Step 5: Solve for x
   x = 5,859,495.77/3,561.80
6. Step 6: Final answer
   x = 1,645.10