Finding the Fourth Proportional to 1,621.56, 2,236.56 and 1,061.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,621.56 : 2,236.56 = 1,061.16 : x
2. Step 2: Convert to fraction form
   1,621.56/2,236.56 = 1,061.16/x
3. Step 3: Cross multiply
   1,621.56x = 2,236.56 × 1,061.16
4. Step 4: Simplify right side
   1,621.56x = 2,373,348.01
5. Step 5: Solve for x
   x = 2,373,348.01/1,621.56
6. Step 6: Final answer
   x = 1,463.62