Finding the Fourth Proportional to 1,061.94, 1,591.96 and 412.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.94 : 1,591.96 = 412.52 : x
2. Step 2: Convert to fraction form
   1,061.94/1,591.96 = 412.52/x
3. Step 3: Cross multiply
   1,061.94x = 1,591.96 × 412.52
4. Step 4: Simplify right side
   1,061.94x = 656,715.34
5. Step 5: Solve for x
   x = 656,715.34/1,061.94
6. Step 6: Final answer
   x = 618.41