Finding the Fourth Proportional to 1,061.82, 1,592.55 and 412.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.82 : 1,592.55 = 412.56 : x
2. Step 2: Convert to fraction form
   1,061.82/1,592.55 = 412.56/x
3. Step 3: Cross multiply
   1,061.82x = 1,592.55 × 412.56
4. Step 4: Simplify right side
   1,061.82x = 657,022.43
5. Step 5: Solve for x
   x = 657,022.43/1,061.82
6. Step 6: Final answer
   x = 618.77