Finding the Fourth Proportional to 1,561.50, 2,153.61 and 1,063.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,561.50 : 2,153.61 = 1,063.62 : x
2. Step 2: Convert to fraction form
   1,561.50/2,153.61 = 1,063.62/x
3. Step 3: Cross multiply
   1,561.50x = 2,153.61 × 1,063.62
4. Step 4: Simplify right side
   1,561.50x = 2,290,622.67
5. Step 5: Solve for x
   x = 2,290,622.67/1,561.50
6. Step 6: Final answer
   x = 1,466.94